燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2014年
5期
19-24
,共6页
朱兰%张剑%卿雄杰
硃蘭%張劍%卿雄傑
주란%장검%경웅걸
涡轮导向器%扇形叶栅%数值模拟%改进设计%试验验证%周期性
渦輪導嚮器%扇形葉柵%數值模擬%改進設計%試驗驗證%週期性
와륜도향기%선형협책%수치모의%개진설계%시험험증%주기성
turbine nozzle%sector cascade%numerical simulation%improved design%experiment verification%periodicity
对一高压涡轮导向器扇形叶栅进行试验，发现相邻测试叶片流场的周期性较差，给导向器气动性能试验评估带来极大困难。对试验件的数值模拟亦给出了相同结果。为提高试验评估精度，采用几何设计和数值模拟迭代的方法，对试验件进行了改进设计。对改进试验件进行的试验表明，高压涡轮导向器扇形叶栅通道内的周期性得到明显改善，该试验结果可较为准确地评估导向器的气动性能。
對一高壓渦輪導嚮器扇形葉柵進行試驗，髮現相鄰測試葉片流場的週期性較差，給導嚮器氣動性能試驗評估帶來極大睏難。對試驗件的數值模擬亦給齣瞭相同結果。為提高試驗評估精度，採用幾何設計和數值模擬迭代的方法，對試驗件進行瞭改進設計。對改進試驗件進行的試驗錶明，高壓渦輪導嚮器扇形葉柵通道內的週期性得到明顯改善，該試驗結果可較為準確地評估導嚮器的氣動性能。
대일고압와륜도향기선형협책진행시험，발현상린측시협편류장적주기성교차，급도향기기동성능시험평고대래겁대곤난。대시험건적수치모의역급출료상동결과。위제고시험평고정도，채용궤하설계화수치모의질대적방법，대시험건진행료개진설계。대개진시험건진행적시험표명，고압와륜도향기선형협책통도내적주기성득도명현개선，해시험결과가교위준학지평고도향기적기동성능。
An experiment of the sector cascades of high pressure turbine nozzle without expected periodici-ty of flow fields brings difficulty to evaluate the aerodynamic performance of guide vane. The simulation re-sults verified this characteristic of nonperiodicity. In order to improve the accuracy of experiment assess-ment, the improved design of the test section was carried out by means of iteration between geometry design and numerical simulation. The experiment results of improved specimen indicate that the periodicity is obvi-ously improved in the sector cascade channels of high pressure turbine guide vane. The experiment results can be used to evaluate the aerodynamic performance of guide vane.
