International Journal of Numerical Methods for Heat and Fluid Flow

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Three-dimensional rotating Darcy–Forchheimer flow with activation energy
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 29 Số 3 - Trang 935-948 - 2019
Sadia Rashid, Tasawar Hayat, Sumaira Qayyum, M. Ayub, Jinde Cao
Purpose The purpose of this study is to study flow caused by rotating frame. Effects of Darcy–Forchheimer and porous medium are considered to study velocity field. Concentration field is discussed in presence of activation energy. Darcy–Forchheimer in a rotating frame is examined. Flow because of stretched sheet fills t...... hiện toàn bộ
Formulation and experiments with high‐order compact schemes for nonuniform grids
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 8 Số 3 - Trang 288-303 - 1998
W.F.Spotz
Considers the extension of a new class of higher‐order compact methods to nonuniform grids and examines the effect of pollution that arises with differencing the associated metric coefficients. Numerical studies for the standard model convection diffusion equation in 1D and 2D are carried out to validate the convergence behaviour and demonstrate the high‐order accuracy.
Predictions of swirling flow in sudden‐expansion dump combustor with flameholder side‐inlet using two‐step combustion model
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 9 Số 7 - Trang 764-787 - 1999
Shu‐HaoChuang, Chih‐ShengYang, Nein‐JouWu
The swirling flow of sudden‐expansion dump combustor with central V‐gutter flameholder and six side‐inlets is studied by employing the SIMPLE‐C algorithm and Jones‐Launder k‐ε two‐equation turbulent model. Both combustion models of one‐step with infinite chemical reaction rate and two‐step with finite chemical reaction rate of eddy‐breakup (EBU) model are used to solve the present problem....... hiện toàn bộ
A new PCA‐ANN algorithm for retrieval of rainfall structure in a precipitating atmosphere
International Journal of Numerical Methods for Heat and Fluid Flow - - 2011
SrinivasaRamanujam, R.Chandrasekar, BalajiChakravarthy
PurposeThe purpose of this paper is to develop an algorithm, using PCA‐based neural network, to retrieve the vertical rainfall structure in a precipitating atmosphere. The algorithm is powered by a rigorous solution to the plane parallel radiative transfer equation for the atmosphere with thermodynamically consistent vertic...... hiện toàn bộ
Energetic-exergetic analysis of an air handling unit to reduce energy consumption by a novel creative idea
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 29 Số 10 - Trang 3959-3975 - 2019
Meysam Yari, Rasool Kalbasi, Pouyan Talebizadehsardari
Purpose This study aims to simulate the flow and heat transfer through an air handling unit to reduce its energy consumption by a novel creative idea of using an air-to-air heat exchanger. Design/methodology/approach To d...... hiện toàn bộ
Flow pattern transition of natural convection in a horizontal annulus with constant heat flux on the inner wall
International Journal of Numerical Methods for Heat and Fluid Flow - - 2005
Joo‐SikYoo
PurposeThis study considers the natural convection in a horizontal annulus with constant heat flux on the inner cylinder, and investigates the transition of flows for various Prandtl numbers.Design/methodology/approachThe streamfu...... hiện toàn bộ
Numerical study of natural convective heat transfer with large temperature differences
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 11 Số 4 - Trang 329-341 - 2001
JanVierendeels, BartMerci, ErikDick
Study of the wave‐breaking's qualitative behavior of the Fornberg‐Whitham equation via quasi‐numeric approaches
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 22 Số 5 - Trang 537-553 - 2012
MehdiDehghan, JalilManafian Heris
PurposeThis paper aims to show that the variational iteration method (VIM) and the homotopy perturbation method (HPM) are powerful and suitable methods to solve the Fornberg‐Whitham equation.Design/methodology/approachUsing HPM th...... hiện toàn bộ
Numerical study and POD snapshot analysis of flow characteristics for pulsating turbulent opposing jets
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 29 Số 6 - Trang 2009-2031 - 2019
Morteza H. Bagheri, Kazem Esmailpour, Seyyed Mostafa Hoseinalipour, Arun S. Mujumdar
Purpose The purpose of this study is to investigate the coherent structures of pulsed opposing jets by large eddy simulation (LES) model and proper orthogonal decomposition (POD) snapshot method. Flow pulsation as an active flow control method is considered for the enhancement of transport phenomena in impinging jets. T...... hiện toàn bộ
FEM PREDICTIONS FOR TWO‐PHASE FLOW IN A VERTICAL PIPE WITHOUT THE USE OF ANY EXTERNAL CORRELATIONS
International Journal of Numerical Methods for Heat and Fluid Flow - Tập 3 Số 6 - Trang 565-575 - 1993
K.V.PRASHANTH, K.N.SEETHARAMU
A mathematical model is developed for the description of the thermohydraulics of the two‐phase flow phenomenon in a vertical pipe. Using an additional momentum equation for the slip velocity, it is shown that the computation of slip and pressure drop from the model equations is possible without the use of any external correlations. The finite element method is used to solve the governing e...... hiện toàn bộ
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