| Article ID: | iaor20134000 |
| Volume: | 81 |
| Issue: | 1 |
| Start Page Number: | 1 |
| End Page Number: | 8 |
| Publication Date: | Aug 2013 |
| Journal: | Journal of Engineering Mathematics |
| Authors: | Hocking G, Holmes R, Forbes L |
| Keywords: | simulation |
The flow of water over a broad obstruction usually creates a downstream wave train. However, it has been shown that for some objects and discrete values of flow rate and height and length of the obstruction, there are no downstream waves – and hence zero wave drag on the object. Here we revisit this problem and complete an examination of the parameter space for flow over a semi‐ellipse. A rich pattern of waveless solutions that merge into each other is detected.