AUTOPLOT USE file h00001 2 h00002 h00003 h00004 h00005 data 1 time diam data 2 time diam data 3 time diam data 4 time diam data 5 time diam pl red @ 0.84592E+03 0.15372E+04 CR Particle diameter vers time.@ @ 0.12304E+04 0.22211E+04 CR particle 1@ @ 0.20379E+04 0.21430E+04 CR particle 2@ @ 0.28389E+04 0.20257E+04 CR particle 3@ @ 0.28902E+04 0.23775E+04 CR particle 4@ @ 0.29351E+04 0.26706E+04 CR particle 5@ @ 0.29415E+04 0.14330E+03 CR time (second)@ @ 0.13842E+04 0.82071E+03 P Press e to end.@ ENDUSE TEXT(ISOTHER. EVAPORN, CONST PROP'S:G508 TITLE DISPLAY Evaporation of a particle with conditions such that the particle temperature is constant. Constant gas temperature,no slip. Particle diameter as a function of time is given by: d = sqrt(d0**2 - 4.Nu.kg(Tg-Tp).t/rhop/L) where: d - particle diameter d0 - particle initial diameter kg - thermal conductivity of continuous phase L - latent heat of evaporation Nu - Nusselt number t - time rhop - particle liquid density Tg - gas temperature Tp - particle temperature ENDDIS REAL(WIN);WIN=50.0 STEADY=F;GRDPWR(T,5,2.0E-02,1.0) GRDPWR(X,5,2.0,1.0) SOLVE(P1,U1);SOLVE(TEM1) STORE(PRPS);FIINIT(PRPS)=0.0 STORE(RHO1);STORE(ENUL) PRESS0=1.0E+05 FIINIT(U1)=WIN;FIINIT(P1)=WIN;FIINIT(TEM1)=450.0 PATCH(GXIN,WEST,1,1,1,1,1,1,1,LSTEP) COVAL(GXIN,P1,FIXFLU,WIN);COVAL(GXIN,U1,ONLYMS,WIN) COVAL(GXIN,TEM1,ONLYMS,450.0) PATCH(GXOUT,EAST,NX,NX,1,1,1,1,1,LSTEP) COVAL(GXOUT,P1,FIXP,0.0) LSWEEP=1 #GENTRA *------------------------------------------------------- * GENTRA GROUP 1: Particle physics *------------------------------------------------------- * Particle type - 60 - VAPORISING_DROPLETS GPTYPE=60 * Gravity components in GENTRA Cartesian system/buoyancy GGRAX=0;GGRAY=0;GGRAZ=0;GBUOYA=F * Stochastic model of turbulence GSTOCH=F * Data for vaporising particles GDRAG=GRND1;GKONC=3.3400E-02;GNUSS=1.9060E+01 GKONV=2.5000E-02;GCPCON=1000;GCPVAP=2000 GMWCON=28;GMWVAP=18;GLIQST=GRND1 GCPLIQ=4200;GHLIQD=1.0000E+06;GVAPST=373 GLATVP=2.2500E+06;GSTPRE=19614;GDTRCT=0 *------------------------------------------------------- * GENTRA GROUP 2: Boundary conditions for particles *------------------------------------------------------- * Inlet-data file-name GINFIL=Q1 * Use this space for inlet-data table if GINFIL=Q1*_XP_UP_DI_LDEN_MDOT_TEM_(NUM)_(STR)_(END) 0.1 50.0 5e-5 1000 1e-6 350 * Wall treatment, and rest coefficient if appropriate GWALLC=3;GWREST=1 * Porosity threshold GPOROS=0 *------------------------------------------------------- * GENTRA GROUP 3: Numerical controls *------------------------------------------------------- * 1st GENTRA sweep; frequency of calls GSWEP1=1;GSWEPF=1 * Maximum Lagrangian time-step; time step size multplier GDTMAX=1;GRTFRC=1 * Min # of t-steps per cell; max # of t-steps; timeout GLAGTS=25;GSTEMX=0;GTIMMX=0 *------------------------------------------------------- * GENTRA GROUP 4: Output controls *------------------------------------------------------- * Restart-file, history-file and frequency for output GRSFIL=NONE;GHFILE=GHIS;GOUTFR=1;GSWOUT=10 * The identifier of the individual history and trajectory files GH1STC=H;GT1STC=NONE * The first, last particles and the interval for writing history and trajectory files NGWSTR=1;NGWEND=10;NGWINT=1 * Particle number for residence-time calculation GRESTI=0 *------------------------------------------------------- * GENTRA GROUP 5: Provisions for the GENTRA-Earth run *------------------------------------------------------- * Storage for interphase sources of momentum STORE(MOMX) * Storage for interphase source of heat STORE(HEAT) * Storage for interphase source of mass and for vapour mass-fraction STORE(MASS) * Prandtl numbers for vapour mass-fraction SOLVE(VAPO) * Interphase sources of heat and momentum PATCH(GENPAT,CELL,1,NX,1,NY,1,NZ,1,LSTEP) COVAL(GENPAT,U1,FIXFLU,GRND) COVAL(GENPAT,TEM1,FIXFLU,GRND) COVAL(GENPAT,VAPO,FIXFLU,GRND) * Interphase sources of mass PATCH(GENMAS,CELL,1,NX,1,NY,1,NZ,1,LSTEP) COVAL(GENMAS,P1,FIXFLU,GRND) * Relaxation of interphase sources GLNRLX=1 RELAX(MOMX,LINRLX,GLNRLX) RELAX(HEAT,LINRLX,GLNRLX) RELAX(MASS,LINRLX,GLNRLX) SPEDAT(SET,GXMONI,TRANSIENT,L,F) * Activation of GENTRA GROUND-station L(GENSET * ---------------------------------------------------------- * GENTRA GROUP 7: GENTRA test * ---------------------------------------------------------- * GENTRA auto test RG(51)--RG(58) are reserved RG(51)= 6.00E-02;RG(52)= 1.82E+02;RG(53)= 4.98E-03 RG(54)= 7.90E+00;RG(55)= 7.50E+00;RG(56)= 7.50E+00 RG(57)= 5.25E+00;RG(58)= 5.55E-01 EX(P1 )=5.000E+01;EX(U1)=4.205E+01;EX(SPH1)=1.005E+03 EX(RHO1)=1.189; EX(TEM1)=4.500E+02