Results 31 to 40 of about 576,001 (212)

The Boussinesq approximation in rapidly rotating flows [PDF]

open access: yes, 2013
In commonly used formulations of the Boussinesq approximation centrifugal buoyancy effects related to differential rotation, as well as strong vortices in the flow, are neglected.
Marqués, Francisco   +2 more
core   +3 more sources

Adomian Decomposition and Successive Approximation Methods for Solving Kaup-Boussinesq System

open access: yesScience Journal of University of Zakho, 2019
The Kaup-Boussinesq system has been solved numerically by using two methods, Successive approximation method (SAM) and Adomian decomposition method (ADM).
Saad A. Manaa, Nergiz M. Mosa
doaj   +1 more source

Capturing the baroclinic effect in non-Boussinesq gravity currents

open access: yesTheoretical and Applied Mechanics Letters, 2022
Direct numerical simulations of two-dimensional gravity currents with small and medium density variations are performed using different non-Boussinesq buoyancy approximations.
Shengqi Zhang, Zhenhua Xia
doaj   +1 more source

Oscillatory convection and limitations of the Boussinesq approximation [PDF]

open access: yes
We determine the asymptotic conditions under which the Boussinesq approximation is valid for oscillatory convection in a rapidly rotating fluid. In the astrophysically relevant parameter regime of small Prandtl number, we show that the Boussinesq ...
Wood TS, Bushby PJ
core   +4 more sources

Modelling of natural convection flows with large temperature differences : a benchmark problem for low Mach number solvers. Part 1, Reference solutions [PDF]

open access: yes, 2005
There are very few reference solutions in the literature on non-Boussinesq natural convection flows. We propose here a test case problem which extends the well-known De Vahl Davis differentially heated square cavity problem to the case of large ...
Catherine Weisman   +22 more
core   +1 more source

A numerical investigation of high-Reynolds-number constant-volume non-Boussinesq density currents in deep ambient [PDF]

open access: yes, 2011
The time-dependent behaviour of non-Boussinesq high-Reynolds-number density currents, released from a lock of height h0 and length x0 into a deep ambient and spreading over horizontal flat boundaries, is considered.
S. BALACHANDAR   +6 more
core   +1 more source

The Miles Theorem and New Particular Solutions to the Taylor--Goldstein Equation [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2016
The linear stability problem of steady-state plane-parallel shear flows of a continuously stratified inviscid incompressible fluid in the gravity field between two immovable impermeable solid planes is studied in and without the Boussinesq approximation.
A.A. Gavrilieva   +2 more
doaj  

Solvability of the Boussinesq Approximation for Water Polymer Solutions

open access: yesMathematics, 2019
We consider nonlinear Boussinesq-type equations that model the heat transfer and steady viscous flows of weakly concentrated water solutions of polymers in a bounded three-dimensional domain with a heat source.
Mikhail A. Artemov   +1 more
doaj   +1 more source

Dynamic equilibria of a nonisothermal fluid

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
In this paper, stationary dynamic equilibria of the rotating mass of a nonisothermal fluid are discussed within the accuracy limits of the Boussinesq approximation.
Evgeny Yu Prosviryakov
doaj   +1 more source

A Non-Hydrostatic Depth-Averaged Model for Hydraulically Steep Free-Surface Flows

open access: yesFluids, 2017
This study describes the results of a numerical investigation aimed at developing and validating a non-hydrostatic depth-averaged model for flow problems where the horizontal length scales close to flow depth.
Yebegaeshet T. Zerihun
doaj   +1 more source

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