配点型无网格法是纯无网格法,它不需要任何背景网格,效率高。本文用加权最小二乘配点方法(Weighted Least-Squares Collocation Method-WLSCM)计算不规则区域热传导问题,形函数采用径向基函数近似。通过二维具有分析解的实例表明WLSCM方法精度高,稳定性好且具有较高的计算效率。此外,将WLSCM方法应用于工程中常见的三维不规则区域热传导问题,结果表明:WLSCM方法的计算结果与FLUENT的计算结果符合很好。 Point-type meshless method is pure meshless method, it does not require any background grid, high efficiency. In this paper, Weighted Least-Squares Collocation Method (WLSCM) is used to calculate the heat conduction in irregular regions. The shape functions are approximated by radial basis functions. The two-dimensional analytic solution shows that the WLSCM method has high precision, good stability and high computational efficiency. In addition, the WLSCM method is applied to the three-dimensional irregular heat conduction problem in engineering. The results show that the WLSCM method is in good agreement with the FLUENT method.