A teaching demonstrator for the relationship between fluid pressure and flow velocity is provided, which is composed of two sets of brackets, horizontal bars and rectangular heavy chemical fiber cloth with the same area and can cover the wind shield outside; the bracket is composed of a base, a support rod and an insert; the center of the base is vertically fixed with a vertical support rod, and the top of the support rod is vertically fixed with inserts; and the two front and rear symmetrical brackets are connected vertically with inserts. A pair of horizontal parallel transverse bars are fixed between the inserts, and the middle of the two transverse bars is fixed to the top of two heavy chemical fiber cloths, and the two heavy chemical fiber cloths are symmetrical to the left and right, and both fall naturally under gravity under the transverse bars under natural wind-free conditions. The present invention has the simplest structure, no need of any pneumatic and electric supporting device facilities, the lowest cost, easy manufacturing of each structural component, and the overall price of the device can be controlled within 10 yuan, but it can clearly demonstrate the abstract relationship between fluid pressure and flow velocity. The phenomenon is obvious, the operation is simple, the students are more acceptable, and the cover is covered. The transparent wind shield can also effectively eliminate the interference of natural wind on the experimental results.
【技术实现步骤摘要】
流体压强与流速关系教学演示仪
本专利技术属教学演示教具
，具体涉及一种流体压强与流速关系教学演示仪。
技术介绍
1726年,伯努利通过无数次实验,发现了“边界层表面效应”：流体速度加快时，物体与流体接触的界面上的压力会减小,反之压力会增加。为纪念这位科学家的贡献,这一发现被称为“伯努利效应”。伯努利效应适用于包括气体在内的一切流体,是流体作稳定流动时的基本现象之一,反映出流体的压强与流速的关系。但是上述概念的理解较为抽象，而现有技术下能够直观展示该规律的实验教具结构又趋于复杂，操作不便。为此，如何通过最为简单、经济、低廉、直观、且操作简便的教具设计来展示上述规律，现提出如下改进技术方案。
技术实现思路
本专利技术解决的技术问题：提供一种流体压强与流速关系教学演示仪，解决现有技术下能直观演示“伯努利效应”流体压强与流速关系的演示教具结构仍旧过于复杂、成本依旧较高、操作不便的技术问题。本专利技术采用的技术方案：流体压强与流速关系教学演示仪，其特征在于：由两组支架、两个横杆和两张具有相同展开面积的长方形重磅化纤布组成；上述两组支架由两个前后对称的底座、两个前后对称的竖...
【技术保护点】
1.流体压强与流速关系教学演示仪，其特征在于：由两组支架(1)、两个横杆(2)和两张具有相同展开面积的长方形重磅化纤布(3)组成；上述两组支架(1)由两个前后对称的底座(4)、两个前后对称的竖直支撑杆(5)和两个前后对称的插片(6)组成；其中两个底座(4)分别前后对称放置于水平平台上端面，每个底座(4)中心分别垂直固连竖直的支撑杆(5)，每根竖直的支撑杆(5)顶端分别垂直固连插片(6)，且上述每个插片(6)均平行于底座(4)设置；两个插片(6)之间固连一对水平平行设置的横杆(2)；上述两根横杆(2)的中部分别固连两张重磅化纤布(3)的顶端，且两张重磅化纤布(3)左右对称设置...
【技术特征摘要】
1.流体压强与流速关系教学演示仪，其特征在于：由两组支架(1)、两个横杆(2)和两张具有相同展开面积的长方形重磅化纤布(3)组成；上述两组支架(1)由两个前后对称的底座(4)、两个前后对称的竖直支撑杆(5)和两个前后对称的插片(6)组成；其中两个底座(4)分别前后对称放置于水平平台上端面，每个底座(4)中心分别垂直固连竖直的支撑杆(5)，每根竖直的支撑杆(5)顶端分别垂直固连插片(6)，且上述每个插片(6)均平行于底座(4)设置；两个插片(6)之间固连一对水平平行设置的横杆(2)；上述两根横杆(2)的中部分别固连两张重磅化纤布(3)的顶端，且两张重磅化纤布(3)左右对称设置，且自然无风状态下均受重力自然下垂于横杆(2)的下方。2.根据权利要求1所述的流体压强与流速关系教学演示仪...
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