International Journal of Numerical Methods for Heat & Fluid Flow: Volume 30 Issue 9

Dual-position excitation technique in flow control over an airfoil at low speeds

Abbas Ebrahimi, Majid Hajipour, Kamran Ghamkhar

The purpose of this paper is to control flow separation over a NACA 4415 airfoil by applying unsteady forces to the separated shear layers using dielectric barrier discharge (DBD…

Choke flutter instability sources tracking with linearized calculations

Pierre Duquesne, Quentin Rendu, Stephane Aubert, Pascal Ferrand

The choke flutter is a fluid-structure interaction that can lead to the failure of fan or compressor blade in turbojet engines. In ultra high bypass ratio (UHBR) fans, the choke…

Model structure effect on static aeroelastic deformation of the NASA CRM

Houda Bdeiwi, Andrea Ciarella, Andrew Peace, Marco Hahn

This paper aims to present a computational aeroelastic capability based on a fluid–structure interaction (FSI) methodology and validate it using the NASA Common Research Model…

Investigation of the flight behavior of a flare-stabilized projectile using 6DoF simulations coupled with CFD

Daniel Klatt, Michael Proff, Robert Hruschka

The present work aims to investigate the capabilities of accurately predicting the six-degrees-of-freedom (6DoF) trajectory and the flight behavior of a flare-stabilized…

Numerical and experimental investigations of buffet on a diamond airfoil designed for space launcher applications

Jéromine Dumon, Yannick Bury, Nicolas Gourdain, Laurent Michel

The development of reusable space launchers requires a comprehensive knowledge of transonic flow effects on the launcher structure, such as buffet. Indeed, the mechanical…

Development of a 3D CFD aerodynamic optimization tool and application to engine air intake design

Grégory Millot, Olivier Scholz, Saïd Ouhamou, Mathieu Becquet, Sébastien Magnabal

The paper deals with research activities to develop optimization workflows implying computational fluid dynamics (CFD) modelling. The purpose of this paper is to present an…

RBF-based mesh morphing improvement using Schur complement applied to rib shape optimization

Franck Mastrippolito, Stephane Aubert, Frédéric Ducros, Martin Buisson

This paper aims to improve the radial basis fuction mesh morphing method. During a shape optimization based on computational fluid dynamic (CFD) solvers, the mesh has to be…

Painlevé analysis for new (3 + 1)-dimensional Boiti–Leon–Manna–Pempinelli equations with constant and time-dependent coefficients

Abdul-Majid Wazwaz

The purpose of this paper is to introduce two new (3 + 1)-dimensional Boiti–Leon–Manna–Pempinelli (BLMP) equations, the first with constant coefficients and the other with…

Three-dimensional analysis of heat transfer in a channel provided with solid baffle, single and double perforation: A heat exchanger application

Hamidou Benzenine, Rachid Saim, Said Abboudi, Hakan F. Öztop, Nidal Abu-Hamdeh

The purpose of this paper is to present a three-dimensional (3D) analysis of the laminar flow of air and the conjugate heat transfer in a pipe of rectangular cross-section with a…

A cubic B-spline quasi-interpolation method for solving two-dimensional unsteady advection diffusion equations

Ramesh Chand Mittal, Sudhir Kumar, Ram Jiwari

The purpose of this study is to extend the cubic B-spline quasi-interpolation (CBSQI) method via Kronecker product for solving 2D unsteady advection-diffusion equation. The CBSQI…

Study of the flow in a cryogenic pump under different cavitation inducements by considering the thermodynamic effect

Chunlei Shao, Zhongyuan Zhang, Jianfeng Zhou

The purpose of this paper is to accurately predict the cavitation performance of a cryogenic pump and reveal the influence of the inlet pressure, the surface roughness and the…

Dufour and Soret effects on Darcy-Forchheimer flow of second-grade fluid with the variable magnetic field and thermal conductivity

Ambreen A. Khan, S. Naeem, R. Ellahi, Sadiq M. Sait, K. Vafai

This study aims to investigate the effect of two-dimensional Darcy-Forchheimer flow over second-grade fluid with linear stretching. Heat transfer through convective boundary…

Hydrodynamic and thermal analysis of water, ethylene glycol and water-ethylene glycol as base fluids dispersed by aluminum oxide nano-sized solid particles

Younes Menni, Ali J. Chamkha, Nicola Massarotti, Houari Ameur, Noureddine Kaid, Mohammed Bensafi

The purpose of this paper is to carry out a hydrodynamic and thermal analysis of turbulent forced-convection flows of pure water, pure ethylene glycol and water-ethylene glycol…