贯通式风动潜孔锤反循环钻头结构流场的分析与结构优化

Flow Distribution Analyses and Structure Optimization of Reverse Circulation Bits on Structure of Hollow Air Hammer

摘要:

简要介绍了流体力学计算软件，详细阐述了运用该软件分析取心钻头内外流场的原理和步骤，通过仿真分析GQ-89贯通式风动潜孔锤反循环取心钻头周围的流场，优化设计了钻头的反循环结构参数，取得满意效果。

Abstract:

The hydrodynamics calculation software is introduced in brief. The principle and procedures of using the software to analyze the flow distribution around inner and outer surfaces of core bits are expounded in details. After simulating and analyzing the flow field around the GQ-89 percussion coring bit, we design the reverse circulation optimized structural parameter of the bits, then get the satisfactory results.