Non-pneumatic tyres (NPT) provide a greater advantage over the pneumatic type owing to their construct which increases the reliability of the tyre operation and effectively reduces maintenance involved. Analysing the aerodynamic forces acting on a NPT becomes a crucial factor in understanding it’s suitability for practical implementation. In the present work, the aerodynamic performance of a NPT using CFD tool – SimScale^® is studied. This work includes a comparative study of a pneumatic tyre, a NPT with wedge spokes and a NPT with hexagonal spokes (NPT-HS). The effect of air velocity, steering (yaw) angle and camber angle on the aerodynamic performance of the NPT-HS is evaluated using CFD. By increasing the steering angle from 0° to 15°, the lift coefficient decreases by 37% approximately at all velocities. Whereas drag coefficient initially decreases by 21% till 7.5° steering angle and then starts increasing. Increasing camber angle from 0° to 1.5°, both drag and lift coefficients goes on decreasing by approximately 7% and 27% respectively.

非充气轮胎（NPT）的结构比充气型轮胎更具优势，因为它的结构增加了轮胎操作的可靠性，并有效地减少了维护成本。分析作用在《不扩散核武器条约》上的空气动力成为了解其在实际实施中的适用性的关键因素。在目前的工作中，NPT利用CFD工具的空气动力学性能- SimScale ^®被研究。这项工作包括对充气轮胎，带有楔形辐条的NPT和带有六角形辐条的NPT（NPT-HS）的比较研究。使用CFD评估了风速，转向（偏航）角和外倾角对NPT-HS空气动力学性能的影响。通过将转向角从0°增大到15°，升速系数在所有速度下大约降低37％。阻力系数最初会下降21％，直到转向角达到7.5°，然后才开始增加。将外倾角从0°增加到1.5°，阻力系数和升力系数分别继续减小约7％和27％。