Solut ution ion Hist story y and Solar r Ca Calculat ulator - PowerPoint PPT Presentation

Solut ution ion Hist story y and Solar r Ca Calculat ulator or No Nov. 29th

Solution lution Histor ory Introdu oduction ction Soluti tion on Histor ory y is a powerfu ful addi diti tion on to the e post-proce ocess ssing ng capabil biliti ties es of STAR AR-CC CCM+ M+ - It allows ws the us user to store re and reloa load d data from m previous vious states es of the e simu mulation lation - User r define nes s which ich data a are stored red - Data are stored red in a *.simh imh file The e us user r is able e to interr errogat ate e soluti tion on data a from om previous vious time e step eps s or iterati eration ons AF AFTER ER so solvi ving ng - Com ompare are solution ions s at differen erent t time me steps ps (or iterat ations) ions) - Creat ate e animat ations ions of transient nsient simul ulat ations ions - Com ompare are solution ions s with th differen erent t conditions nditions (mesh meshes, es, design sign changes) nges) at se severa eral time me st steps ps

Solution lution Histor ory Setu etup p in STAR-CCM+ CM+ Soluti tion on Histor ory y is access essed d throu ough gh two o new w node des s on the e Tree - Soluti tion on Histories ories + Define the “input” : Where, When and Which data are stores - Soluti tion on Views ws + Define the “output” : Which solution file is recalled, which state is displa layed d how w it is animat mated ed

Solution lution Histor ory Remark marks The e .simh mh file e can conta ntain in a lot ot of us useful data, , but ut as a conseq nsequen ence ce of this, s, they y can becom come e rathe her large - The e file e size e is propor porti tion onal al to : + The e num umbe ber r of steps + The e numbe umber r of sc scalars + The e num umbe ber r of vector ors - The e file e can take e time e to reload oad + Think nk abou out t the e order der in which ch you u perform orm opera erati tion ons + Best st to load each h state e only ly once ce perform orm each ch expor port t oper erat ation ion before ore moving ving to the e next xt state

Solution lution Histor ory Usin ing g a Solution lution Hist istor ory

Sola lar r Cal alculat culator or Introdu oduction ction The e Solar ar Calcula ulator or com omput utes s sun un altitude de (ele levat ation), ion),azimuth azimuthal angle, le, and direct/d ect/diffuse fuse solar r flux uxes es in STAR AR-CC CCM+ M+ - New w releas ease e on STAR AR-CC CCM+ + 7.04 04 - Ex Exper ert t input uts s are a s sun unsh shine ine fa factor or to accom ommo modat date e the e clouds uds and a diffuse e fracti tion on to conside ider r a fracti tion on of so solar ar radiati tion on as s diffuse For r un unsteady eady simula ulati tion ons, s, the e solar ar calcul ulat ator or aut utomat matically cally refre resh shes s sol olar ar value ues s at ever ery y time me-st step. ep.

Sola lar r Cal alculat culator or Setu etup p in STAR-CCM+ CM+ For r a chose osen n solar ar load d mode del, l, Solar ar Calcula ulator or is access essed ed throu ough gh new w node de on the e Physics sics model odel - Soluti tion on Calculator or + Define the “Properties” : Date, time and geographical location sets up + Define the “Expert Properties” : Diffuse Fraction and Sunshine Factor

Sola lar r Cal alculat culator or Remark marks Solar ar radiati tion on speci cified ied by latitude, de, longi gitu tude de, , time me & date Additi tional onal sun unsh shine ine fa factor or to compen pensat sate e for or changin nging skies ies Aut utoma matic tic irradiati diation on up update e for transie nsient nt analys ysis Variable Range Referernce Latitude in degrees Latitude -90.0~+90.0 (north positive, south negative) Longitude in degrees from Greenwich Longitude -180.0~+180.0 (east positive, west negative) -12.0~+12.0 Time that is offset with respect to UTC Time Zone (in hours) (east positive, west negative) Starting local time Hour 0~23 (24-hour format; default 12:00 noon) Minute 0~59 Starting minute

DEM EMONS ONSTRA TRATION TION

Using ng a a Solar olar Cal alculat culator or And d Solu lution tion Histor ory

Sola lar r Cal alculat culator or And d Solu lution tion Histor ory