# buoyantBoussinesqSimpleFoam for water impinging jet flow

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 April 24, 2016, 21:31 buoyantBoussinesqSimpleFoam for water impinging jet flow #1 New Member   amine heroual Join Date: Oct 2015 Posts: 4 Rep Power: 4 hi i have a question i have simulated a water impinging jet flow (incompressible case is water ) i chose buoyantBoussinesqSimpleFoam solver is correct or not if is not correct ??? and simplefoam+Temperature equation or buoyantBoussinesqSimpleFoam what is the best solver for this case ( impinging jet flow with water is the fluid) this is my question please help me and thank you for all amine

 April 25, 2016, 02:43 #2 Super Moderator     Tobias Holzmann Join Date: Oct 2010 Location: Leoben (Austria) Posts: 1,974 Blog Entries: 6 Rep Power: 33 Hello Amine, the solver you have to choose is dependend on the phenomena's you have. If you have buoyancy driven flow, you need the buoyancy term that forces the fluid to flow. Hence you should use buoyant...Foam. SimpleFOAM + Temperature equation will not fulfill buoyancy if you not add the buoyancy force. Boussinesq Approximation is only fulfilled if you have only density change of 2-5% (for water), otherwise I would prefer to use the normal buoyant...Foam. FInally your question has to be answered by yourself. arvindpj and amine hero like this. __________________ Keep foaming, Tobias Holzmann

 December 7, 2016, 06:22 #3 New Member     rakesh Join Date: Jul 2015 Location: Nagpur, India Posts: 10 Rep Power: 4 Hi Tobi, kindly suggest a solver for a single-phase transient case involving, forced convections [inlet velocity of fluid: water] + gravity. I have tried using buoyantBoussinesqPimpleFoam by setting thermal expansion coefficient (beta) = 0. But I couldn't find the effect of gravity in the simulation. Kindly suggest how to proceed. Thanks

 December 10, 2016, 20:35 #4 Super Moderator     Tobias Holzmann Join Date: Oct 2010 Location: Leoben (Austria) Posts: 1,974 Blog Entries: 6 Rep Power: 33 What about buoyantPimpleFoam? Sent from my HTC One mini using CFD Online Forum mobile app __________________ Keep foaming, Tobias Holzmann

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