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Recent Propulsion and Power Research Articles

Recently published articles from Propulsion and Power Research.

Detection of asymmetric transmission error in geared rotor system through transverse vibration analysis using full spectrum

September 2020
Bhyri Rajeswara Rao | Rajiv Tiwari

Transmission error (TE) in geared rotors is a predominant source of inherent excitation at the pitch point of the gear meshing. In this paper, a transverse vibration analysis is presented to study the...

Thermodynamic second law analysis of magneto-micropolar fluid flow past nonlinear porous media with non-uniform heat source

September 2020
E.O. Fatunmbi | S.O. Salawu

This study analyzes the second law of thermodynamic for entropy generation in an irreversible hydromagneto-micropolar flow system with non-homogenous heat generation. The non-symmetric microstructure...

Design of a two spool contra-rotating turbine for a turbo-fan engine

September 2020
Prathapanayaka Rajeevalochanam | S.N. Agnimitra Sunkara | Seepana Venkata Ramana Murthy | R. Senthil Kumaran

Contra-rotating turbines offer enhanced performance over their conventional co-rotating configurations. In addition, vaneless contra-rotating turbine stages offer lesser stage length along with improved...

Medium independent jet (MI-Jet) engine

September 2020
Prajith Kumar K P | Aravind Vaidyanathan

MI-Jet or medium independent jet engine is a new conceptual design which can be used in any gaseous atmosphere or in any planets with an ISP greater than that of the existing rocket engines. MI engine's...

Dense core response to forced acoustic fields in oxygen-hydrogen rocket flames

September 2020
Youhi Morii | Scott Beinke | Justin Hardi | Taro Shimizu | Hideto Kawashima | Michael Oschwald

Oscillatory combustion representative of thermo-acoustic instability in liquid rockets is simulated by experiment and LES calculation to investigate the flame behavior in detail. In particular, we focus...

Slip flow of micropolar fluid through a permeable wedge due to the effects of chemical reaction and heat source/sink with Hall and ion-slip currents: an analytic approach

September 2020
Khilap Singh | Alok Kumar Pandey | Manoj Kumar

This study focuses on the combined impact of heat source/sink and chemical reaction on slip flow of micropolar fluid through a permeable wedge in the existence of Hall and ion-slip currents. The governing...

Finite element solution of nonlinear convective flow of Oldroyd-B fluid with Cattaneo-Christov heat flux model over nonlinear stretching sheet with heat generation or absorption

September 2020
Wubshet Ibrahim | Gosa Gadisa

In this study, a two-dimensional boundary layer flow of steady incompressible nonlinear convective flow of Oldroyd-B fluid over a nonlinearly stretching sheet with Cattaneo-Christov heat flux model...

Catalytic effect of platinum and silver in a hydrogen peroxide monopropellant ceramic microthruster

September 2020
Zahra Khaji | Lena Klintberg | Kristoffer Palmer | Greger Thornell

Ceramic microthrusters with an embedded Pt resistive heater, two temperature sensors, and a Pt or Ag catalytic bed were made of high-temperature co-fired alumina ceramics. To increase the surface area...

Dynamic analysis and identification of unbalance and misalignment in a rigid rotor with two offset discs levitated by active magnetic bearings: a novel trial misalignment approach

Available online 14 September 2020
Prabhat Kumar | Rajiv Tiwari

Rotating machinery is an essential and crucial component of numerous mechanical systems in modern industries, transport vehicles, and in several other applications. Excessive vibrations on rotating...

Magnetohydrodynamic stagnation-point flow of Sisko nanofluid over a stretching sheet with suction

Available online 14 September 2020
Dulal Pal | Gopinath Mandal

A numerical investigation is presented to show the effects of thermo-diffusion on the hydromagnetic stagnation-point flow of Sisko nanofluid over a linearly stretching sheet by considering viscous dissipation...

Effect of reacting gas on the fluidic thrust vectoring of an axisymmetric nozzle

Available online 1 July 2020
R. Chouicha | M. Sellam | S. Bergheul

During the last years, several thrust control systems of aerospace rocket engines have been developed. The fluidic thrust vectoring is one of them; it is simple in design and offers a substantial gain...

Darcy-Forchheimer relation in Casson type MHD nanofluid flow over non-linear stretching surface

June 2020
Ghulam Rasool | Ali J. Chamkha | Taseer Muhammad | Anum Shafiq | Ilyas Khan

Present article aims to discuss the characteristics of Casson type nanofluid maintained to flow through porous medium over non-linear stretching surface in the perspective of heat and mass transfer...

Influence of magneto-thermo radiation on heat transfer of a thin nanofluid film with non-uniform heat source/sink

June 2020
Dulal Pal | Debranjan Chatterjee | Kuppalapalle Vajravelu

The objective of the present work is to analyze the flow, heat and mass transfer characteristics in a thin nanofluid film over a heated stretched sheet in the presence of a non-uniform heat source/sink...

Ignition and combustion modelling in a dual fuel diesel engine

June 2020
R. De Robbio | M.C. Cameretti | R. Tuccillo

A numerical simulation of a single cylinder research diesel engine fuelled by natural gas and diesel oil in dual fuel mode was conducted to test the reaction mechanism presented by Li and Williams in...

Numerical study of operational processes in a GOx-kerosene rocket engine with liquid film cooling

June 2020
Evgenij A. Strokach | Igor N. Borovik | Vladimir G. Bazarov | Oscar J. Haidn

Combustion process inside kerosene-GOx rocket combustor with kerosene film cooling is studied, and a modeling approach is proposed. The paper suggests to use the Lagrangian particle tracking technique...

A novel approach for the design of axial flow fan by increasing by-pass ratio in a constant-diameter turbofan

June 2020
Ali Shahsavari | Mahdi Nili-Ahmadabadi

The present study introduces an innovative aerodynamic redesign of an axial flow fan based on constant diffusion factor and radial equilibrium. All input design parameters such as mass flow rate, hub...

Pressure vessel priming analysis for a regulated liquid propulsion system

June 2020
Jeffrey D. Moore

An investigation was performed to determine the pressure transient levels and time required to reach pressure equilibrium in a regulated liquid propulsion system due to the priming of a propellant tank...

On the stability of the flow over a shrinking cylinder with prescribed surface heat flux

June 2020
Izyan Syazana Awaludin | Rokiah Ahmad | Anuar Ishak

This study investigates the steady stagnation point flow and heat transfer passes a horizontal shrinking permeable cylinder. The free stream velocity and the prescribed surface heat flux are assumed...

Steady state heat transfer analysis in a rectangular moving porous fin

June 2020
Partner L. Ndlovu | Raseelo J. Moitsheki

In this article, the variation of temperature distribution and fin efficiency in a porous moving fin of rectangular profile is studied. This study is performed using Darcy's model to formulate the governing...

The assessment of time dependent flow of Williamson fluid with radiative blood flow against a wedge

March 2020
K. Subbarayudu | S. Suneetha | P. Bala Anki Reddy

The present pagination reports both Brownian diffusion and thermophoresis aspects subject to magnetohydrodynamic Williamson fluid model. Assuming the flow is unsteady and blood is treated as Williamson...

Application of laser energy deposition to improve performance for high speed intakes

March 2020
A. Russell | M. Myokan | H. Bottini | A. Sasoh | H. Zare-Behtash | K. Kontis

Research interest has been growing in recent years in supersonic transport, particularly supersonic propulsion systems. A key component of a commonly studied propulsion system, ramjets, is the air intake....

Axisymmetric and three-dimensional flow simulation of a mixed compression supersonic air inlet

March 2020
M. Abedi | R. Askari | J. Sepahi-Younsi | M.R. Soltani

The flow through an axisymmetric supersonic mixed-compression air inlet has been simulated numerically to investigate the effects and the necessity of the three-dimensional (3D) modeling in comparison...

Interaction between a diesel-fuel spray and entrained air with single- and double-injection strategies using large eddy simulations

March 2020
Jonathan Brulatout | François Garnier | Patrice Seers

Interaction between fuel and air in a combustion chamber is one of the main drivers of the mixing process. Experimentally, flow visualizations are limited by high droplet density in the spray. Numerically,...

3D modeling of transformation of gaseous pollutants in the high-pressure turbine of an aircraft engine

March 2020
Trung Hieu Nguyen | Phuong Nguyen-Tri | Francois Garnier

Aircraft emissions contribute to global climate change and regional air pollution near airports. Understanding the formation and the transformation of emissions in the aircraft engine is essential to...

Estimation of the internal and external damping from the forward and backward spectrum of a rotor with a fatigue crack

March 2020
Dipendra Kumar Roy | Rajiv Tiwari

Both internal and external damping are concurrently present in a rotor system. However, the internal damping that originates from various sources often leads to instability in the rotor system, and...

Aeroelastic vibration analysis of a 1.5 stage compressor

March 2020
Yun Zheng | Qingzhe Gao | Hui Yang | Kang Xu

Aeroelastic vibration problems are commonly found in modern compressors operating in off-design conditions. Large amplitude vibration could lead to high cycle fatigue (HCF) of blade and usually occurs...

Performance index improvement of a double-pipe cooler with MgO/water-ethylene glycol (50:50) nano-suspension

March 2020
H. Arya | M.M. Sarafraz | O. Pourmehran | M. Arjomandi

A series of tests was conducted to unlock the potential application of MgO/water-EG (ethylene glycol) nanofluids (NF) in a double-pipe heat exchanger (HEX). The overall heat transfer coefficient (HTC),...

3D radiative convective flow of ZnO-SAE50nano-lubricant in presence of varying magnetic field and heterogeneous reactions

December 2019
M.K. Nayak | J. Prakash | D. Tripathi | V.S. Pandey

A numerical simulation is presented to investigate the effect of an exponentially varying magnetic field on three dimensional flow of Zinc Oxide-Society of Automotive Engineers 50 nanolubricant (ZnO-SAE50nano-lubricant)...

Numerical investigation on the heat transfer enhancement using a confined slot impinging jet with nanofluid

December 2019
Ibrahim K. Alabdaly | M.A. Ahmed

In this article, laminar convective heat transfer of a confined slot impinging jet with nanofluid has been numerically investigated over Reynolds number ranges of 200–1000. Two circular ribs are mounted...

Utilizing an auxiliary portable lube oil heating system in Aliabad Katoul-Iran V94.2 gas turbine during standstill mode: a case study

December 2019
H. Hasannejad | Seyyed Masoud Seyyedi | M. Hashemi-Tilehnoee

In a gas turbine power plant, the lubrication oil must be hot enough for the turbine start-up where the unit is in standstill mode. Currently, the strategy to heat the lubrication oil of ANSALDO V94.2...

Hydromagnetic unsteady slip stagnation flow of nanofluid with suspension of mixed bio-convection

December 2019
R. Kumar | S. Sood | C.S.K. Raju | S.A. Shehzad

In this paper, stagnation point region (suspended with nanofluid and microorganisms) is examined subjected to velocity and thermal slips. The flow is assumed to be flowing across an exponentially stretching...

Combustion performance studies of aluminum and boron based composite solid propellants in sub-atmospheric pressure regimes

December 2019
Pratim Kumar | Mayank Varshney | Aniket Manash

The aim of present study is to investigate the burning rate, ignition delay, and flame characteristics of ammonium perchlorate (AP)-hydroxyl terminated poly-butadiene (HTPB) [AP/HTPB] based composite...

The zero-dimensional model of the scavenging process in the opposed-piston two-stroke aircraft diesel engine

December 2019
Ł. Grabowski | K. Pietrykowski | P. Karpiński

The analysis of the scavenging process in two-stroke engines is important in terms of achieved performance and emission of toxic substances. The amount of mass of air used for the scavenging process...

A numerical study of anti-vortex film-cooling holes designs in a 1-1/2 turbine stage using LES

December 2019
Nabeel Al-Zurfi | Ali Turan | Adel Nasser | Ahmed Alhusseny

The primary focus of the present study is to investigate the impact of anti-vortex holes design on the film-cooling performance in a film-cooled rotor blade model using the large eddy simulation method...

Aero-thermal redesign of a high pressure turbine nozzle guide vane

December 2019
Hadi Yavari | Ali Khavari | Mohammad Alizadeh | Behrad Kashfi | Hiwa Khaledi

The current article presents conceptual, preliminary and detailed aero-thermal redesign of a typical high pressure turbine nozzle guide vane. Design targets are lower coolant consumption, reduced manufacturing...

Second law analysis of Blasius flow with nonlinear Rosseland thermal radiation in the presence of viscous dissipation

September 2019
M.I. Afridi | M. Qasim

In the present article, we perform the second law analysis of classical Blasius flow accounting the effects of nonlinear radiation and frictional heating. The two-dimensional boundary layer momentum...

Peristaltic transport of Herschel-Bulkley fluid in a non-uniform elastic tube

September 2019
C.K. Selvi | A.N.S. Srinivas

The influence of elasticity on peristaltic transport of Herschel-Bulkley fluid in a tube of non-uniform cross-section is investigated. The exact solutions for flow quantities such as velocity, stream...

Numerical modeling and spatial stability analysis of the wall jet flow of nanofluids with thermophoresis and brownian effects

September 2019
Amin Jafarimoghaddam | Fatemeh Shafizadeh

The present work describes similarity solution to a general scheme for the wall jet flow of nanofluids, accounting both the similarity branches (say upper and lower), allowed with respect to the suction...

Hall, ion slip and ohmic heating effects in thermally active sinusoidal channel

September 2019
S. Noreen | T. Kousar

In this paper Carreau fluid is taken into account to study its peristaltic flow with Hall and ion-slip effects. The study is carried out in a wave frame of reference for both asymmetric and symmetric...

Natural convective heat transfer in a square enclosure utilizing magnetic nanoparticles

September 2019
Latifa M. Al-Balushi | M.J. Uddin | M.M. Rahman

In the present paper, unsteady natural convective heat transfer flow inside a square enclosure filled with nanofluids containing magnetic nanoparticles using nonhomogeneous dynamic model is investigated...

Design point analysis of two-shaft gas turbine engines topped by four-port wave rotors for power generation systems

September 2019
A. Fatsis

Wave rotors are rotating equipment designed to exchange energy between high and low enthalpy fluids by means of unsteady pressure waves. In ground power plants, they can be used as topping devices to...

Heat and mass transfer analysis on flow of Williamson nanofluid with thermal and velocity slips: Buongiorno model

September 2019
Yap Bing Kho | Abid Hussanan | Muhammad Khairul Anuar Mohamed | Mohd Zuki Salleh

The thermal and velocity slips of boundary layer of Williamson nanofluid over a stretching sheet are studied numerically. Buongiorno model is used to explore the heat transfer phenomena caused by Brownian...

Cilia-assisted hydromagnetic pumping of biorheological couple stress fluids

September 2019
K. Ramesh | D. Tripathi | O. Anwar Bég

A theoretical study is conducted for magnetohydrodynamic pumping of electro-conductive couple stress physiological liquids (e.g. blood) through a two-dimensional ciliated channel. A geometric model...

Computational study on flow through truncated conical plug nozzle with base bleed

June 2019
Prasanth P. Nair | Abhilash Suryan | Heuy Dong Kim

Conical plug nozzle and truncated conical plug nozzle are advanced rocket nozzles suitable for use as altitude compensating nozzles. In this study flow through the conical plug and truncated conical...

Flow and heat transfer of composite porous medium saturated with nanofluid

June 2019
J.C. Umavathi | K. Hemavathi

The present article is concerned with the heat transfer of nanofluid saturated with porous medium sandwiched between clear viscous fluid filled in a vertical channel. The model is developed to analyze...

Mixed convection in a lid-driven cavity filled with single and multiple-walled carbon nanotubes nanofluid having an inner elliptic obstacle

June 2019
Fatih Selimefendigil

In this study, numerical analysis and optimization in a single and multiple walled carbon nanotube-water nanofluid filled lid driven cavity having an inner elliptic obstacle were performed by using...

Numerical simulation of diesel combustion based on n-heptane and toluene

June 2019
Kesong Zhang | Qiangzhi Xin | Zhenqian Mu | Zhijian Niu | Zhiming Wang

Considering the self-ignition characteristic and C/H ratio, n-heptane and toluene (6:4 by mass) are chosen to constitute diesel surrogate fuel, and a reduced oxidation mechanism was developed. This...

Thermal radiation and slip effects on magnetohydrodynamic (MHD) stagnation point flow of Casson fluid over a convective stretching sheet

June 2019
Jawad Raza

Current study examines the combined effect of thermal radiation and velocity slip along a convective heated stretching sheet. magnetohydrodynamic (MHD) effect near the stagnation point is also under...

LES of rotating film-cooling performance in a 1-1/2 turbine stage

June 2019
Nabeel Al-Zurfi | Adel Nasser

The large eddy simulation method was employed to investigate the film-cooling performance in a low-speed rotor blade of a 1-1/2 turbine stage. The rotor blade height and axial chord length were 99 mm...

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