1. Department of Aeronautics and Astronautics Stanford University Durand Building, 496 Lomita Mall Stanford 94305‐4035 CA USA
2. Department of Mechanical Engineering Stanford University Building 530, 440 Escondido Mall Stanford 94305‐3030 CA USA
3. Institute for Computational and Mathematical Engineering Stanford University Huang Engineering Center, 475 Via Ortega, Suite 060 Stanford 94305‐4042 CA USA
4. Department of Mechanical Engineering Notre Dame University‐Louaize Zouk Mosbeh Lebanon