重型卡車裝上噴嘴式減阻裝置後的計算模擬分析

黃進帽

3.239.233.139，Hello！

Close
Search Quick Search Advanced Search Publication Search	Personal Service Member Login Searching History Use Bonus Card SYMSKAN
Browse Browse by University of Graduate Thesis Browse by Pinyin of Graduate Thesis Browse by Conference Proceedings Topic Browse by Conference Proceedings Publisher Browse by Pinyin of Conference Proceedings Browse by eBook Category Browse by eBook Topic Browse by eBook Publisher
Customer Services Authorize Airiti Recommend a Journal

Search Symbol (Half-width)	Description of Search Symbols
Space	"AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " )	Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" ： " image process "
?	Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
*	Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )
AND、OR、NOT	Boolean logic combinations of key words is a skill used to expand or refine search parameters. (1) AND (1) AND: Refines search parameters (2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters

DOI stands for Digital Object Identifier （ D igital O bject I dentifier ） ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「http://dx.doi.org/」「 http://dx.doi.org/ 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: http://dx.doi.org/ 10.5297/ser.1201.002 。
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI Registration （ doi.airiti.com ）。

Data Source

College of Engineering > Department of Aeronautics & Astronautics
Engineering > Transportation Vehicle Engineering

Bibliography Management Tool

Related Links

Report an Issue

Purchase Single Articles

Download PDF

重型卡車裝上噴嘴式減阻裝置後的計算模擬分析

Computational Simulation of Heavy Truck Model with Corner Nozzle Drag Reduction Device

黃進帽 , Masters　　Advisor：陳世雄　　

英文

計算流體力學；空氣動力；角落噴嘴；轉折角；面積比； CFD ； aerodynamics ； corner nozzle ； effusive angle ； area ratio

Abstract │ Reference (33) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

Heavy truck fuel consumption represents a high percentage in overall energy consumption. Its matchbox-like configuration makes its aerodynamic drag exceed the frictional drag due to its weight. A large portion of the aerodynamic drag is attributed to the drag in the rear end of the truck. The purpose of this research is to study numerically the design of corner nozzles, installed vertically at two corners of the truck’s rear end, for the aerodynamic drag reduction to save fuel consumption. The model of heavy truck in the present study was an 1/8-scale Ground Transportation System (GTS), which was studied experimentally in the 7-by 10-foot NASA Ames wind tunnel facility. Computational fluid dynamics (CFD) method was used to do the numerical simulation. The computational model was created using CATIA CAD file. The numerical method adopted was CFX software for numerical simulation and ICEM-CFD for mesh generation. The simulations were performed on a baseline GTS truck model with and without the add-on corner nozzles. Comparisons were made to see the effectiveness of the corner nozzles. The nozzles in design considerations were made of two curved sheet metals. The performances were determined based on two configuration parameters: the effusive angles from 20 degrees to 70 degrees, and the nozzle outlet to inlet area ratios (AR) from 1.0 to 2.0 at 0.2 intervals. Calculations showed good aerodynamic drag reductions at different percentages. The results indicated that the larger AR has better drag reduction effect. The optimal effective angle for a given AR is proportional to the value of AR. The larger AR has the larger optimal effusive angle. The best design in the present study was found to be 7.609% in drag reduction when AR equals 2.0 and effusive angle is 60 degrees.

Reference ( 33 ) 〈TOP〉

[4] R. M. Wood and S. X. S. Bauer, "Single and Low-Cost Aerodynamic Drag Reduction Devices for Tractor-Trailer Trucks," SAE Technical Paper 2003-01-3377, DOI: 10.4271/2003-01-3377, 2003.
連結：
[6] R. H. Croll, W. T. Gutierrez, B. Hassan, J. E. Suazo, and E. J. Riggins, "Experimental Investigation of the Ground Transportation Systems (GTS) Project for Heavy Vehicle Drag Reduction," SAE Technical Paper 960907, DOI: 10.4271/960907, 1996 .
連結：
[8] W. T. Gutierrez, B. Hassan, R. H. Croll, and W. T. Gutierrez, "Aerodynamics Overview of the Ground Transportation Systems (GTS) Project for Heavy Vehicle Drag Reduction," SAE Technical Paper 960906, DOI: 10.4271/960906, 1996.
連結：
[9] J. D. Coon and K. D. Visser, "Drag Reduction of a Tractor-Trailer Using Planar Boat Tail Plates," The Aerodynamics of Heavy Vehicles: Trucks, Buses, and Trains, Lecture Notes in Applied and Computational Mechanics, Vol. 19, pp. 249-265, Springer-Verlag Berlin Heidelberg, 2004.
連結：
[10] R. McCallen, T. D. Dan Flowers, and J. Owens, "Aerodynamic Drag of Heavy Vehicles (Class 7-8): Simulation and Benchmarking," SAE Technical Paper 2000-01-2209, DOI: 10.4271/2000-01-2209, 2000.
連結：

Altmetrics

〈TOP〉

E-mail ：

When an article is available to download, a notice will be sent to your mailbox address.

E-mail ：