側向雙垂直噴注於超音速空氣流場之交互作用探討

何仲軒

3.238.249.17，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

側向雙垂直噴注於超音速空氣流場之交互作用探討

Interactions of Lateral Injected Doublet Liquid Jets in Supersonic Airflow

何仲軒 , Masters　　Advisor：袁曉峰　　

繁體中文

超音速燃燒衝壓引擎；雙垂直噴注；震波交互作用； scramjet ； doublet liquid jets ； shock/shock interactions

Abstract │ Reference (29) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

The scramjet engine performance is highly related to the mixing efficiency between liquid fuel and airflow because of the short residence time of the supersonic airflow. Since multi-point fuel injection is required in scramjet engine, better understand the effect of interactions between jets on fuel-air mixing is important to the scramjet fuel injection design. This thesis research utilizes a reflected shock tunnel to produce Mach 2 airflow. The experiments are conducted with singlet and doublet injection orifices of 0.5mm in diameter laterally aligned to the airflow. The spacing between the doublet orifices are 5mm, 7.5mm, and 10mm. JP-4 fuel is used as the working fluid and injected into the supersonic airflow. Schlieren photography and Mie scattering are adopted to observe the spray structure during the experiments. The experimental observations show that the dissipation distance of spray increase with decreasing spacing between adjacent jets, that is, worse mixing between the fuel spray and air. Further analyses indicate that the shock/shock interactions between the bow shocks induced by adjacent liquid jets enhance the stability of the air flow field and less surface disturbance and more stable spray is observed. As the spacing between the adjacent jets increases to 10mm, the mixing behavior of the doublet jets is similar to the singlet one. It is understood that the penetration heights of jets are crucially sensitive to the momentum flux ratio of jet to airflow, and the experiment results do not show significant variation of penetration heights in cases of different spacing between jets. Concluded from the present observations, the spacing between span-wise align jets is recommended to be more than 20 times of the orifice diameter in engineering applications to achieve adequate mixing of fuel and Mach 2 cross flow of air.

Reference ( 29 ) 〈TOP〉

1.J. A. Schetz, E. A. Kush Jr. and P. B. Joshi, “Wave phenomena in liquid jet breakup in a supersonic crossflow” , AIAA,pp.774-778,1980
連結：
3.K. Mahesh, “The interaction of jets with crossflow”, Annu. Rev. Fluid Mech. 45, 379–407 , 2013
連結：
5.J.Beloki Perurena, C. O. Asma,R.Theunissen,O.Chazot, ”Experimental Investigation of Liquid Jet Injection into Mach 6 Hypersonic Crossflow ” , Experiments in Fluids,Vol.46,No.3,pp403-417, 2009
連結：
6.M. R. Gruber, A. S. Nejab, T. H. Chen, J. C. Dutton, “Bow shock/jet interaction in compressible transverse injection flowfields” , AIAA,
連結：
7.Guo-Lei Wang, Xi-Yun Lu , “Effects of the jet-to-crossflow momentum ratio on a sonic jet into a supersonic crossflow”, Theoretical & applied mechanics,letters 1,012005,2011
連結：

Altmetrics

〈TOP〉

E-mail ：

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

E-mail ：