منابع مشابه
Drag force in AdS/CFT
The AdS/CFT correspondence and a classical test string approximation are used to calculate the drag force on an external quark moving in a thermal plasma of N = 4 superYang-Mills theory. This computation is motivated by the phenomenon of jet-quenching in relativistic heavy ion collisions.
متن کاملViscometer using drag force measurements.
A robust and precise viscometer using the forces exerted by a laminar flow inside a small duct is presented: the force is measured on a long cylindrical sensor dipped into the flow. Two devices of respective volumes 1.4 and 0.031 ml have been realized, demonstrating that the technique is usable with small fluid volumes. Several Newtonian and non-Newtonian fluids have been tested at shear rates ...
متن کاملForce Controllable Hydro-Elastic Actuator
We present a hydro-elastic actuator that has a linear spring intentionally placed in series between the hydraulic piston and actuator output. The spring strain is measured to get an accurate estimate of force. This measurement alone is used in PI feedback to control the force in the actuator. The spring allows for high force fidelity, good force control, minimum impedance, and large dynamic ran...
متن کاملMicro Contacts and Micro Manipulation with Mems Actuator Arrays
As improvements in fabrication technology for MEMS (micro electro mechanical systems) increase the availability and diversity of these micromachines, engineers are deening a growing number of tasks to which they can be put. The idea of carrying out tasks using coordinated systems of MEMS units motivates the development of automated, algorithmic methods for modeling, designing and controlling th...
متن کاملGeneralized drag force for particle-based simulations
Computing the forces acting from a surrounding air phase onto a particle-based fluid or rigid object is challenging. Simulating the air phase and modeling the interactions using a multiphase approach is computationally expensive. Furthermore, stability issues may arise in such multiphase simulations. In contrast, the effects from the air can be approximated efficiently by employing a drag equat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Transactions on Electronics, Information and Systems
سال: 1991
ISSN: 0385-4221,1348-8155
DOI: 10.1541/ieejeiss1987.111.11_595