Wake Vortex Environment Simulations from a Terminal Area PBL Prediction System (TAPPS)

2006 ◽  
Author(s):  
Michael Kaplan ◽  
Yuh-Lang Lin ◽  
Chad Ringley ◽  
Zachary Brown ◽  
Michael Kiefer ◽  
...  
Keyword(s):  
Wake Vortex ◽  
Prediction System ◽  
Terminal Area

A terminal area PBL prediction system for DFW

1999 ◽  
Author(s):  
Michael Kaplan ◽  
Ronald Weglarz ◽  
Yuh-Lang Lin ◽  
Darrell Ensley ◽  
Jennifer Kehoe ◽  
...  
Keyword(s):  
Prediction System ◽  
Terminal Area

scholarly journals A new eddy dissipation rate formulation for the Terminal Area PBL Prediction System (TAPPS)

2000 ◽  
Author(s):  
Joseph Charney ◽  
Michael Kaplan ◽  
Yuh-Lang Lin ◽  
Karl Pfeiffer
Keyword(s):  
Dissipation Rate ◽  
Prediction System ◽  
Terminal Area ◽  
Rate Formulation

A Terminal Area PBL Prediction System at Dallas–Fort Worth and Its Application in Simulating Diurnal PBL Jets

2000 ◽  
Vol 81 (9) ◽  
pp. 2179-2204 ◽  
Author(s):  
Michael L. Kaplan ◽  
Yuh-Lang Lin ◽  
Joseph J. Charney ◽  
Karl D. Pfeiffer ◽  
Darrell B. Ensley ◽  
...  
Keyword(s):  
Fort Worth ◽  
Prediction System ◽  
Terminal Area

THE IDENTIFICATION OF AN UNSTABLE WAKE VORTEX

2009 ◽  
Vol 16 (2) ◽  
pp. 103-125 ◽  
Author(s):  
Robert C. Nelson ◽  
Brian M. Babie
Keyword(s):  
Wake Vortex

Application of the Boundary Element Method and Modal Analysis to Tire Acoustics Problems

1993 ◽  
Vol 21 (2) ◽  
pp. 66-90 ◽  
Author(s):  
Y. Nakajima ◽  
Y. Inoue ◽  
H. Ogawa
Keyword(s):  
Finite Element ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Acoustic Radiation ◽  
Traffic Noise ◽  
Noise Prediction ◽  
Prediction System ◽  
Tire Noise ◽  
Acoustic Contribution ◽  
Element Method

Abstract Road traffic noise needs to be reduced, because traffic volume is increasing every year. The noise generated from a tire is becoming one of the dominant sources in the total traffic noise because the engine noise is constantly being reduced by the vehicle manufacturers. Although the acoustic intensity measurement technology has been enhanced by the recent developments in digital measurement techniques, repetitive measurements are necessary to find effective ways for noise control. Hence, a simulation method to predict generated noise is required to replace the time-consuming experiments. The boundary element method (BEM) is applied to predict the acoustic radiation caused by the vibration of a tire sidewall and a tire noise prediction system is developed. The BEM requires the geometry and the modal characteristics of a tire which are provided by an experiment or the finite element method (FEM). Since the finite element procedure is applied to the prediction of modal characteristics in a tire noise prediction system, the acoustic pressure can be predicted without any measurements. Furthermore, the acoustic contribution analysis obtained from the post-processing of the predicted results is very helpful to know where and how the design change affects the acoustic radiation. The predictability of this system is verified by measurements and the acoustic contribution analysis is applied to tire noise control.

Short-Term Flood Prediction System

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Konrad Nering
Keyword(s):  
Flash Floods ◽  
Prediction System ◽  
Short Term ◽  
Data Set ◽  
Flood Prediction ◽  
Full Operation

AbstractThis paper describes a fully functional short-term flood prediction system. Its effect has been tested on watershed of Lubieńka river in Małopolska. To use this system it must have a data set also described in this paper. A modification of the system to adopt for predicting flash floods was described. Full operation of the system is shown on example of real flood on Lubieńka river in June 2011.

Numerical study of wake vortex decay and descent in homogeneous atmospheric turbulence

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 643-656 ◽  
Author(s):  
Jongil Han ◽  
Yuh-Lang Lin ◽  
S. P. Arya ◽  
Fred H. Proctor
Keyword(s):  
Atmospheric Turbulence ◽  
Numerical Study ◽  
Wake Vortex
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