An Improved Collocation Meshless Method Based on the Variable Shaped Radial Basis Function for the Solution of the Interior Acoustic Problems

Figure 2

Relative error versus the number of points for MQ; variable shaped MQ(1): 𝜀_𝑗=ℎ³_𝑖; (2) variable shaped MQ(2): 𝜀_𝑗=2ℎ²_𝑖.