CAJ | 학술논문

水力学问题研究方法多样且各具特点，各类方法所获成果的异同性倍受关注。基于某水电站高水头泄洪底孔，应用物理模型试验、水力学原型观测及时均化的紊流数学模型对水力学问题进行模拟或观测，辨识出3种研究方法的适宜范围及程度，三者对于宏观水力流态、底流速、时均压力及掺气空腔的模拟成果吻合良好，水面线模拟有一定差异，原型水面波动、水舌纵向扩散更大，成果可引导此类型水力学问题的研究方法选择及成果修正。
수역학문제연구방법다양차각구특점，각류방법소획성과적이동성배수관주。기우모수전참고수두설홍저공，응용물리모형시험、수역학원형관측급시균화적문류수학모형대수역학문제진행모의혹관측，변식출3충연구방법적괄의범위급정도，삼자대우굉관수력류태、저류속、시균압력급참기공강적모의성과문합량호，수면선모의유일정차이，원형수면파동、수설종향확산경대，성과가인도차류형수역학문제적연구방법선택급성과수정。
The research methods of hydraulics are diverse and each method has its characteristics. It is more con?cerned for the similarities and differences of reached achievements from all kinds of methods. Based on the bottom out?let of flood discharge with high water head in one hydropower station, the simulation and observation are carried through for the hydraulic issues by applying the physical modeling experiment, the prototype measurement of hydrau?lics and the time?averaged turbulence mathematical model. The adaptable scope and degree of three kinds of methods are identified. It is identical well for the simulated results of three methods with the macroscopic hydraulic flow state, bottom flow velocity, time?averaged pressure and aerated cavity. Meanwhile, there is a certain difference in the simu?lation of flow profile. The fluctuation prototypical water surface and longitudinal diffusion of water jets are larger. The achievement can be used to lead the selection of research method and correction of achievement for this type of hydrau?lic issues.