A case-study comparison of computer modeling and scale modeling in acoustics consulting

2002 ◽  
Vol 111 (5) ◽  
pp. 2370
Author(s):  
Paul T. Calamia
Keyword(s):  
Computer Modeling ◽  
Scale Modeling

scholarly journals Scale Modeling of Snow–Avalanche Impact on Structures

1980 ◽  
Vol 26 (94) ◽  
pp. 189-196
Author(s):  
T. E. Lang ◽  
J.D. Dent
Keyword(s):  
Froude Number ◽  
Computer Modeling ◽  
Snow Avalanche ◽  
Small Scale ◽  
Snow Avalanches ◽  
Scale Modeling ◽  
Impact Processes ◽  
Model Fluid ◽  
Impact Predictions

AbstractSmall–scale modeling of flow and impact of snow avalanches is demonstrated to be both feasible and accurate. Geometric, kinematic, and force variables are scaled correctly under equivalence of Froude number between prototype and model using sifted snow as the model fluid. Physical and computer–simulated impact processes show correspondence, so that computer modeling is demonstrated to be a viable tool in flow and impact predictions.

OPTIMIZING BIOSENSOR DESIGN WITH COMPUTER MODELING: A CASE STUDY INVOLVING CREATINE

2001 ◽  
Author(s):  
J.W. SMITH ◽  
R.H. DAVIES ◽  
J.D. ANDRADE ◽  
R.A. VAN WAGENEN
Keyword(s):  
Computer Modeling

scholarly journals Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models

2020 ◽  
Vol 20 (20) ◽  
pp. 12177-12192
Author(s):  
Leenes Uzan ◽  
Smadar Egert ◽  
Pavel Khain ◽  
Yoav Levi ◽  
Elyakom Vadislavsky ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Planetary Boundary Layer ◽  
Small Scale ◽  
Transform Method ◽  
Pollution Dispersion ◽  
Boundary Layer Height ◽  
Scale Modeling ◽  
Richardson Method ◽  
Parcel Method

Abstract. The significance of planetary boundary layer (PBL) height detection is apparent in various fields, especially in air pollution dispersion assessments. Numerical weather models produce a high spatial and temporal resolution of PBL heights; however, their performance requires validation. This necessity is addressed here by an array of eight ceilometers; a radiosonde; and two models – the Integrated Forecast System (IFS) global model and COnsortium for Small-scale MOdeling (COSMO) regional model. The ceilometers were analyzed with the wavelet covariance transform method, and the radiosonde and models with the parcel method and the bulk Richardson method. Good agreement for PBL height was found between the ceilometer and the adjacent Bet Dagan radiosonde (33 m a.s.l.) at 11:00 UTC launching time (N=91 d, ME =4 m, RMSE =143 m, R=0.83). The models' estimations were then compared to the ceilometers' results in an additional five diverse regions where only ceilometers operate. A correction tool was established based on the altitude (h) and distance from shoreline (d) of eight ceilometer sites in various climate regions, from the shoreline of Tel Aviv (h=5 m a.s.l., d=0.05 km) to eastern elevated Jerusalem (h=830 m a.s.l., d=53 km) and southern arid Hazerim (h=200 m a.s.l., d=44 km). The tool examined the COSMO PBL height approximations based on the parcel method. Results from a 14 August 2015 case study, between 09:00 and 14:00 UTC, showed the tool decreased the PBL height at the shoreline and in the inner strip of Israel by ∼100 m and increased the elevated sites of Jerusalem and Hazerim up to ∼400 m, and ∼600 m, respectively. Cross-validation revealed good results without Bet Dagan. However, without measurements from Jerusalem, the tool underestimated Jerusalem's PBL height by up to ∼600 m.

Case study of measurements and computer modeling auralization results for medium‐sized multipurpose halls

2008 ◽  
Vol 123 (5) ◽  
pp. 3937-3937
Author(s):  
Hari V. Savitala ◽  
Jason Duty ◽  
Christopher Peltier
Keyword(s):  
Computer Modeling
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