产品详情

Pressure for a free jet in water. (recordings with courtesy of D. Violato, TU Delft)

Pressure from PIV/PTV

The new Pressure from PIV software package meets the strong demand for direct extraction of full 3D and 2D pressure fields from PIV and Shake-the-Box (4D-PTV) data. With only a few clicks, Pressure from PIV together with LaVision’s DaVis 10 software retrieves and visualizes average pressure fields from all kinds of PIV and PTV velocity data either imported to or directly computed by DaVis. For time-resolved data, even the instantaneous pressure can be evaluated.

Commonly, pressure measurements are retrieved pointwise, for instance with pressure taps or Pitot tubes. Instrumentation of wind tunnel models with pressure sensors is time consuming, complex and expensive. In the European NIOPLEX project, several universities and LaVision joined forces to develop a non-intrusive, direct method for pressure retrieval in complete volumes. This project finally pinpointed practical ways for pressure calculation from PIV/PTV measurements.

LaVision’s ongoing inhouse developments use sophisticated mathematics. Today, all LaVision pressure solvers free the user from limitations on the shape of the test domain that are enforced by common pressure solvers. Furthermore, a new 4D pressure solver was developed for instantaneous pressure fields, which yields stable and reliable pressure results. The central idea of the 4D Pressure Solver is to utilize the temporal information enforcing temporal continuity. Also user-efforts to define boundary conditions are minimized.

The 4D pressure solver takes 4D spatio-temporal blocks into account. Each 4D block consists of multiple 3D domains and their Lagrangian connections in the time domain. User-defined boundary conditions are only required for the first time-step of the first 4D block. For the following 4D blocks, pressure results from previous blocks are transferred to the next 4D step. In this way, the temporal continuity is assured and unphysical fluctuations are avoided.

Product Information

Pressure from PIV

DaVis-压力分析软件包信息由北京欧兰科技发展有限公司为您提供，如您想了解更多关于DaVis-压力分析软件包报价、型号、参数等信息，欢迎来电或留言咨询。除供应DaVis-压力分析软件包外，北京欧兰科技发展有限公司还可为您提供自适应粒子成像测速场仪（PIV）、德国LaVision 表面PIV等产品，公司有专业的客户服务团队，是您值得信赖的合作伙伴。

型号：	DaVis-Pressure
产地：	德国
品牌：	LaVision GmbH
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