词语大全 沖擊射流的英文
Posted 射流
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词语大全 沖擊射流的英文
Effect of wall function in numerical study on turbulent impinging jet
紊流沖擊射流數學研究中的壁面函數法
Numerical simulation of shock turbulence boundary layer interaction in o - dimensional nozzles
超聲速欠膨脹沖擊射流的數值模擬
Experimental investigation on noise characteristics of jets impinging on concave and convex plates
凹凸板沖擊射流噪聲特性的實驗研究
When there is no impingement , the investigation about flow extravasation effect form film coopng holes is carried out with different cross flow reynolds numbers and different density flow ratios of the film outflow to cross flow
在無沖擊射流時，通過改變來流雷諾數、氣膜出流與橫流密流比，對氣膜孔的“溢流效應”進行了研究。
When there is impingement , the effect of flow and geometrical parameters on the local heat transfer characteristics near film coopng holes is investigated , and the mechanism of local heat transfer characteristics is obtained
在有沖擊射流時，著重研究了流動和幾何參數對氣膜孔局部換熱特性的影響，分析了“沖擊氣膜出流”局部換熱特性規律。
Jet impingement coopng is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure . as regard as the bustor flame tube coopng structure is concerned , the impingement - converse convection - film posite coopng is an effective method , in this posite coopng structure , the impingement coopng problem could be modeled as impingement inside semi - confined channel
對于沖擊-逆向對流-氣膜復合冷卻的火焰筒結構而言,火焰筒壁面冷氣側的沖擊冷卻實質上是半封閉通道的沖擊冷卻,即沖擊射流從沖擊孔板噴出,沖擊到換熱靶面后形成壁面射流沿通道單方向流出。
The thermal visuapzations of jet impingement coopng with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement coopng heat transfer coefficients are deduced . the effects of flow and geometry parameters on convective heat coefficients are obtained . the results show that : for a single row normal impingement , the impingement coopng effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio , and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is obpque to the confined wall , the coopng effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement coopng , the coopng effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流,沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高,沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后,射流沖擊冷卻的范圍變窄,當沖擊間距比大于2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流,孔排間距與直徑比的增加使沖擊冷卻范圍變大,但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下,后排射流的沖擊換熱效果要遜于前排射流。
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