# Star CCM+ Help

 Register Blogs Members List Search Today's Posts Mark Forums Read

 December 2, 2017, 19:39 Star CCM+ Help #1 New Member   fa Join Date: Nov 2013 Posts: 21 Rep Power: 7 Hello I am studying mechanical engineering and I need to do a project with star ccm+ but I never used CFD programs before. I am trying to learn how to use the program for two-phase flow (Gas-Liquid) because my project focuses on the interaction between them. I am trying to solve the Stefan problem with gas and water but I do not know how. the model is 40 mm long with about 1 mm in height (hight does not matter because I want to model it as 1 D) I set up my model as Two Dimensional Implicit Unsteady Eulerian Multiphase VOF laminar flow segregated multiphase temperature gravity for the phase interaction model I chose VOF-VOF VOF boiling Rohsenow Boiling interactive density the material properties are the density of both Gas and Water are 1 kg/m3 the mixture latent heat is 1000 kJ/kg the surface tension is 0.01 N/m T sat is 373.15 T wall is 383.15 specific heat for both is 1000 J/kgK Thermal conductivity of water is 1 W/mK and for Gas is 0.1 W/mK the viscosity of Water 0.01 Pas and for Gas is 1E-5 Pas I chose the secondary phase Gas (H2O) and primary phase Water (H2O) and made the VOF as composite and chose a specified filed for the gas on the right side wall for the initial conditions, the pressure was put as the atm pressure static temp. was put as 373.15 K velocity was put as 0 m/s for the right wall boundary condition, I made the temperature specification in the physics condition as a temperature above saturation temp. of 383.15 K The left wall, top wall, and bottom wall was put as plane symmetry I know that there is something wrong with it. Can you help me?? Also, I want to specify the latent heat, so can you inform me how? I figured out that it can be set as the heat of formation and standard static temp. in the material property but I do not understand. I remember seeing in the user guide that they put the latent heat as the heat of formation only, then what is the standard static temp. !! Thank you in advance Last edited by yamifm0f; December 2, 2017 at 21:13.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post TAREK GANAT STAR-CCM+ 1 May 21, 2013 23:15 firda Main CFD Forum 3 February 26, 2011 03:51 Kart OpenFOAM Meshing & Mesh Conversion 1 February 4, 2010 05:38 maurizio Siemens 3 October 16, 2007 06:17 michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 05:15

All times are GMT -4. The time now is 19:57.