Applied Scientific Instruments Co., Ltd.

บริษัท แอพพลายด์ ไซแอนทิฟิค อินสตรูเม้นท์ส จํากัด

ศูนย์รวมเครื่องมือทดสอบ เครื่องมือวิทยาศาสตร์ เครื่องมือวิเคราะห์ทุกชนิด

 

ติดต่อสอบถาม

ผ่าน LINE ID

@asithailand

 

Particle drag coefficients

หมวดหมู่สินค้า: F SERIES - FLUID MECHANICS
รหัส : F12
The apparatus has been designed to introduce students to the fundamental characteristics of the behaviour of particle/fluid systems, in particular the relationship between the drag coefficients of falling particles and their Reynolds’ number value.

02 มิถุนายน 2566

ผู้ชม 463 ผู้ชม

DESCRIPTION

The apparatus has been designed to introduce students to the fundamental characteristics of the behaviour of particle/fluid systems, in particular the relationship between the drag coefficients of falling particles and their Reynolds’ number value.

Particles covering a range of sizes and densities are supplied. The experiments are conducted by allowing single particles to fall through a number of different liquids contained in vertical glass tubes. Blockage effects are reduced to a minimum as the largest particle used has a projected area of only 1% of the tube cross-section.

The rate of fall of the particles is determined by timing their passage between two marks on the walls of the glass tubes.

The equipment consists of two precision glass tubes 1.5m long and 93mm inside diameter fixed vertically on a wall-mounted backboard. A guide is provided at the top of each tube to facilitate the introduction of particles with the minimum of disturbance to the liquid. A sliding valve device at the bottom of each tube allows the particles to be removed with minimum loss of liquid.

Observation of the particle movement is aided by a shielded fluorescent light mounted on the backboard between the glass tubes, marks on the tubes enable the rate of fall to be timed.

In addition to the range of spheres, two streamlined shaped objects are supplied to allow comparison to be made between their drag coefficients and those of the spheres.

 

EXPERIMENTAL CONTENT

  • Measurement of drag coefficients of spheres over several decades of particle Reynolds’ number
  • Exploration of dimensional analysis and dynamic similarity
  • Introduction to the effects of boundary layer separation on motion of spheres
  • Effect of particle shape on rate of fall and on drag coefficient

 

TECHNICAL SPECIFICATIONS

Tube length: 1500mm
Outside diameter: 100mm
Inside diameter: 93mm

Streamlined shapes: x2

Supplied spheres:

Stainless Steel
3.17mm diameter
6.35mm diameter
7.9mm diameter
9.5mm diameter

Ceramic
6.35mm diameter
9.5mm diameter

 

 

ขอใบเสนอราคา

ดาวน์โหลดโบว์ชัวร์

 

 

Engine by shopup.com