Flow field calibration error will effect the uncertainty of the experimental data through data reduction process.
风洞流场校测误差通过试验数据处理而影响试验数据的不确定度。
Through drilling experiment in 156 adjustment Wells, the drilling behaviors, cutter wear, downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed.
通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。
The dynamic stability derivatives which are used for analysis and prediction the characters of spin are acquired in routine flow field usually, which has no effect of rotation.
尾旋特性分析及预测时所使用的动导数通常是在常规流场中获得的，测得的动导数没有体现旋转流场的影响。
应用推荐