International Journal of Numerical Methods for Heat & Fluid Flow: Volume 29 Issue 7

Guest editorial

Bing-Chen Wang, Scott Ormiston

GCRO with dynamic deflated restarting for solving adjoint systems of equations for aerodynamic shape optimization

Chih-Hao Chen, Siva Nadarajah

This paper aims to present a dynamically adjusted deflated restarting procedure for the generalized conjugate residual method with an inner orthogonalization (GCRO) method.

Cross-sectional reshaping of perturbed/unperturbed rectangular jets

Abbas Ghasemi, Xianguo Li

This study aims to investigate the cross-sectional reshaping in transitioning/starting rectangular jets of aspect ratio 2 under various inlet perturbation conditions at the…

Comparison of subgrid-scale models for large-eddy simulation of hydrodynamic and magnetohydrodynamic channel flows

Sebastian Prinz, Jörg Schumacher, Thomas Boeck

This paper aims to address the performance of different subgrid-scale models (SGS) for hydro- (HD) and magnetohydrodynamic (MHD) channel flows within a collocated finite-volume…

Strong fluid–solid interactions with segregated CFD solvers

Mathieu Olivier, Olivier Paré-Lambert

This paper aims to present a fluid-structure coupling partitioned scheme involving rigid bodies supported by spring-damper systems. This scheme can be used with already existing…

Large eddy simulation of an axial pump with coupled flow rate calculation using the sharp interface immersed boundary method

Mohammad Haji Mohammadi, Joshua R. Brinkerhoff

Turbomachinery, including pumps, are mainly designed to extract/produce energy from/to the flow. A major challenge in the numerical simulation of turbomachinery is the inlet flow…

Numerical assessment of miniaturized cold spray nozzle for additive manufacturing

Gus Nasif, R.M. Barron, Ram Balachandar, Julio Villafuerte

Application of cold spray technology may exhibit significant benefits for the additive manufacturing process, particularly for producing intricate objects. To ascertain the…

Interactions between adaptive time-integrators and adaptive meshing in a monolithic FEM solver

Etienne Muller, Dominique Pelletier, André Garon

This paper aims to focus on characterization of interactions between hp-adaptive time-integrators based on backward differentiation formulas (BDF) and adaptive meshing based on…

GPGPU implementation of a lattice Boltzmann methodology for particle transport and deposition in complex flow

Ali Ayyed Abdul-Kadhim, Fue-Sang Lien, Eugene Yee

This study aims to modify the standard probabilistic lattice Boltzmann methodology (LBM) cellular automata (CA) algorithm to enable a more realistic and accurate computation of…

A finite element solver for hypersonic flows in thermo-chemical non-equilibrium, Part I

Jory Seguin, Song Gao, Wagdi George Habashi, Dario Isola, Guido Baruzzi

This paper aims to describe the physical and numerical modeling of a new computational fluid dynamics solver for hypersonic flows in thermo-chemical non-equilibrium. The code uses…

Convergence and error analysis of an automatically differentiated finite volume based heat conduction code

Christopher DeGroot

This paper aims to investigate the convergence and error properties of a finite volume-based heat conduction code that uses automatic differentiation to evaluate derivatives of…

Liquid drop breakup in homogeneous isotropic turbulence

Cheng Zhong, Alexandra Komrakova

This paper aims to demonstrate the capabilities of a diffuse interface free energy lattice Boltzmann method to perform direct numerical simulations of liquid–liquid dispersions in…

A multiphase SPH framework for supercooled large droplets dynamics

Xiangda Cui, Ahmed Bakkar, Wagdi George Habashi

This paper aims to introduce a three-dimensional smoothed particle hydrodynamics (SPH) framework for simulating supercooled large droplets (SLD) dynamics at aeronautical speeds.

Eulerian–Lagrangian CFD model for prediction of heat transfer between aircraft deicing liquid sprays and a surface

Sami Ernez, François Morency

The aim of this paper is to present a Eulerian–Lagrangian model of aircraft ground deicing that avoids the scale’s dispersion problem caused by the great distance between the…