First tests of models of pulsed jet compressor installation

2000 ◽  
Vol 36 (5) ◽  
pp. 292-293
Author(s):  
V. N. Eliseev ◽  
Yu. A. Sazonov
Keyword(s):  
Pulsed Jet ◽  
Compressor Installation

DYNAMICS OF CLEANING BY HYDRAULIC PULSED JET

2015 ◽  
Vol 25 (11) ◽  
pp. 1013-1024 ◽  
Author(s):  
Shuang Liu ◽  
Gensheng Li ◽  
Huaizhong Shi ◽  
Zhongwei Huang ◽  
Shouceng Tian ◽  
...  
Keyword(s):  
Pulsed Jet

Erosion Experiment of Self-Excited Oscillation Pulsed Jet

2014 ◽  
Vol 937 ◽  
pp. 614-619
Author(s):  
Chuan Lin Tang ◽  
Jie Pei ◽  
Dong Hu ◽  
Xiao Ting He
Keyword(s):  
Significant Influence ◽  
Cavity Length ◽  
Experimental Studies ◽  
The Self ◽  
Erosion Depth ◽  
Pulsed Jet ◽  
Excited Oscillation ◽  
Erosion Effect ◽  
Erosion Volume ◽  
Peak Value

In order to improve the erosion effect of jet under submergence condition, experimental studies of erosion generated from the self-excited pulsed jet was carried out by using developed self-excited oscillation nozzle. The erosion volume and depth of pulsed jet were measured and taking mortar block as an erosion part. The results were that the standoff has significant influence on erosion effect. The erosion volume firstly decreases with increases in cavity length and then increases to a peak value. Erosion volume of pulsed jet is significantly higher than that of continuous jet, the erosion depth of two jet has slight difference.

Active control of aerodynamic stall using pulsed jet actuators

1995 ◽  
Author(s):  
K McManus ◽  
P Joshi ◽  
H Legner ◽  
S Davis
Keyword(s):  
Active Control ◽  
Pulsed Jet ◽  
Jet Actuators

scholarly journals Characterization of plasmas from a pulsed jet discharge for applications VUV spectroscopy and micromechanics

1991 ◽  
Vol 27 (1) ◽  
pp. 95-100 ◽  
Author(s):  
H. Phillips ◽  
S. Kubodera ◽  
R. Sauerbrey ◽  
F.K. Tittel ◽  
P.J. Wisoff
Keyword(s):  
Pulsed Jet ◽  
Vuv Spectroscopy

Numerical study of coupled flow in blocking pulsed jet impinging on a rotating wall

2021 ◽  
Vol 43 (11) ◽  
Author(s):  
Li Zhang ◽  
Chuan Wang ◽  
Yingchong Zhang ◽  
Wei Xiang ◽  
Zhaoming He ◽  
...  
Keyword(s):  
Numerical Study ◽  
Coupled Flow ◽  
Pulsed Jet ◽  
Rotating Wall

scholarly journals Effect of unilateral pulsed jet lavage prior to vertebroplasty on the intravertebral pressure and cement distribution

2020 ◽  
Author(s):  
Jun Yan ◽  
Qiaohui Liu ◽  
Yanping Zheng ◽  
Ziqun Liu ◽  
Xinyu Liu ◽  
...  
Keyword(s):  
Bone Cement ◽  
Lumbar Vertebrae ◽  
Compression Fracture ◽  
Cement Leakage ◽  
Control Group ◽  
Pulsed Jet ◽  
Jet Lavage ◽  
Average Maximum ◽  
Cement Distribution ◽  
Vertebral Bodies

Abstract Background: Percutaneous vertebroplasty is the most common treatment for osteoporotic vertebral compression fracture. However, the morbidity of vertebroplasty-related complications, such as cement leakage, remains high. We tested a new technique of unilateral pulsed jet lavage and investigated its effect on the intravertebral pressure and bone cement distribution. Methods: Thirty lumbar vertebrae (L1-L5) from six cadaver spines were randomly allocated into two groups (with and without irrigation). Prior to vertebroplasty, pulsed jet lavage was performed through one side of the pedicle by using a novel cannula with two concentric conduits to remove the fat and bone marrow of the vertebral bodies in the group with irrigation. The control group was not irrigated. Then, standardized vertebroplasty was performed in the vertebral bodies in both groups. Changes in the intravertebral pressure during injection were recorded. Computed tomography (CT) was performed to observe the cement distribution and extravasations, and the cement mass volume (CMV) was calculated. Results: During cement injection, the average maximum intravertebral pressure of the unirrigated group was higher than that of the irrigated group (4.92kPa versus 2.22kPa, P<0.05). CT scans showed a more homogeneous cement distribution with less CMV (3832 mm 3 vs. 4344 mm 3 , P<0.05) and less leakage rate (6.7% vs. 46.7%, P<0.05) in the irrigated group than in the control group. Conclusions: Unilateral pulsed jet lavage can reduce intravertebral pressure and lower the incidence of cement leakage during vertebroplasty. An enhanced bone cement distribution can also be achieved through this lavage system.

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