
145
Chapter 4
Convergence and
consistency analyses
4.1 INTRODUCTION TO CONVERGENCE ANALYSIS
The meshless strong form RDQ method is introduced in the previous
chapter. The primary focus of this chapter is to perform its convergence
and consistency analyses. The DQ method is one of the efcient techniques
for derivative approximation, but it always requires a regular domain with
all the nodes distributed along the straight lines only. This severely restricts
the DQ, while solving problems with irregular domains discretised by ran-
dom eld nodes. This limitation of the DQ method is overcome in the novel
strong form RDQ method.
The RDQ method extends ...