| 1. | Numbercle study longitudinal vortex generration and heat transffer enchancement
纵向涡发生器强化换热性能的数值研究 |
| 2. | This paper mainly studied generation and develepment of the longitudinal vortex and its mechanism for the heat transfer enchancement
本文主要研究了纵向涡的发生发展规律及其强化换热机理。 |
| 3. | The numerical solution shows that the optimal velocity field for laminar convective heat transfer in tubes is multi - longitudinal vortex flow
数值求解表明，管内层流对流换热的最优速度场为多纵向涡流态。 |
| 4. | Consequently , a field coordinated enhancement method by longitudinal vortex flow for convective heat transfer enhancement in tubes is presented
提出了采用多纵向涡强化管内对流换热的场协同强化方法，并进行了数值分析。 |
| 5. | We put out a kind of new - style longitudinal vortex generater - columner longitudinal vortex generater cut by slop on the base of summing up the work which got dy the learners at the past
在总结他人成果的基础上，提出了一种新型的纵向涡流发生元? ?斜切式纵向涡流发生器。 |
| 6. | The numerical analysis indicates that that the multi - longitudinal vortex flow in tubes can markedly enhance both the laminar and turbulent heat transfer with less additional increase of flow resistance
结果表明，管内多纵向涡对层流和湍流换热的强化效果显著而流阻增加较少，具有优良的综合强化换热性能。 |
| 7. | Tow multi - longitudinal vortex enhanced tubes , the alternating elliptical axis tube ( aea - tube ) and the discrete double - inclined ribs tube ( ddir - tube ) , are invented according to the theoretical and numerical analysis
根据理论和数值分析的结果，发明了两种多纵向涡强化换热管? ?交叉缩放椭圆管和不连续双斜内肋管，对其进行了实验和数值研究。 |
| 8. | The experimental and numerical studies on the two enhanced tubes are performed . the strong multi - longitudinal vortex flow in the aea - tube is induced by alternating change of the elliptical cross - section , and for the ddir - tube , the strong multi - longitudinal vortex flow is
交叉缩放椭圆管是通过椭圆截面的交叉变化诱导产生强烈的二次流和多纵向涡流，而不连续双斜向内肋管则是通过不连续的双斜向内肋对的作用形成强烈的多纵向涡。 |
| 9. | Navier - strokes equation was solved using simple method . lam - bremhorst k - e was used to simulate turbulent flow . it was indicated in this thesis that a longitudinal vortex would be produced after the jet exhausted from a plate into a boundary layer at a pitch angle and a skew angle
研究结果表明，有一定倾斜角度的单个射流与主流作用后，将在下游产生一个流向涡旋，涡旋使得边界层内的速度和雷诺应力发生严重扭曲，从而形成上洗区域和下洗区域。 |
| 10. | I setted up the physical modele and calculation - domain for the conviction heat transfer enchancement by the longitudinal vortex , and did the numerical value simulation for the chang of the velocity filed and temperature filed which influnced by lvg . at the same time , i studied the generation develepment of the longitudinal and its mechanism for the heat transfer enchancement . by the analycise of the result , i got the pricipium rule of how the size , ratio corner and distence of the lvg have influence on the generation and develepment of longitudinal vortex , and gave out the relative construct parameter scope
通过对phoenics软件进行应用开发，本文建立了涡旋强化换热的物理模型和计算域，对扰流元作用下的流动速度场和温度场的变化进行了数值模拟，研究了纵向涡旋发生发展及其强化对流换热的机理。初步得出了扰流元的有关结构参数如总体尺寸、宽高比、攻角、间距等因素对涡流发生发展的影响规律，并给出了有关结构参数的取值范围。 |
