stream friction 中文意思是什麼
stream friction
解釋
通行阻滯-
( 6 ) as dean number is increased, the secondary flow firstly becomes symmetry and then the anticlockwise vortexes are enlarged, the contours of axial velocity and the stream function become symmetry, the secondary flow is intensified and the friction factor ratio increases
（ 6 ）增大dean數，二次流先趨于對稱而後逆時針方向的二次渦增大，軸向速度和流函數等值線趨向于對稱，摩擦系數比增大。 -
( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
（ 5 ）增大撓率，逆時針方向旋轉的一二次渦和流函數的負值區域增大，軸向速度最大值的位置按逆時針（環形截面）或順時針（圓截面）方向旋轉，摩擦系數比最終趨向於1 。 -
Fluent can imitate relation curve about heat transfer coefficient k and re, friction resistance coefficient f and re, the isoline about dot metrix between velocity field and temperature grads field. it also drafts several operating mode simulated stream field, velocity and temperature grads field
應用fluent軟體擬合出傳熱系數與re關系曲線、摩擦阻力系數與re關系曲線、速度與溫度場梯度點積值的等值線圖， nu較大的幾個工況的模擬流場、速度和溫度梯度場。 -
Analyze 1000hpa stream field evolvement chart, a southwest - northeast combine strap was forming in liaoning province by southwest air current and northwest air current. level combine induce the combine strap cyclone bend, whorl degree intension increase. boundary layer friction combine bring to ascend and come into being small measure cumulus convection pyrogenation
高低空急流的耦合是此次強對流爆發的重要觸發機制，高低空急流在耦合的過程中， 300hpa高空急流強度超過50m s ， 850hpa低空急流強度超過20m s ，而且低空急流與高空急流剛好在高空急流出口區的位置上相交，對強對流爆發有利。
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