Experimental and Numerical Study of Swirling ... - Solid Mechanics

More documents

Recommendations

Info

Experi imental and Numerical N Stud dy of Swirling g Flow in Scaveenging Processs for 2-Stroke Marin ne Diesel Engin nes Figure F 4.36: : Normalized N Tang gential Velocity V Profiles for fo L=4D, L 6D, 8D (z1 1 --- z6). of varia ation in cylind der length forr each Reynoldds number. TThe profile ploots for diff ferent flow ch haracteristics aare presented separately forr each Reynoldds number r and as desc cribed in tabble 4.1, first a comparisonn of results ffor cylinder lengths of 4D D, 6D and 8DD are discussedd i.e. measurinng planes (z1-zz6) and the en the results for f z7-z13 are giiven for the cyylinder lengthss of 6D and 8DD. The con ntour plots for 3D velocity field, axial voorticity, Reynoolds stresses annd turbulent kinetic ene ergy are discussed only for selected meassuring positionns and rem maining results are given in Appendix C. 4.3.1 Tangentia al Velocityy Profile Chapter 4 88 Swirling Flow in a Pipe
Experi imental and Numerical N Stud dy of Swirling g Flow in Scaveenging Processs for 2-Stroke Marin ne Diesel Engin nes Fig gure 4.37: Nor rmalized Tangential Velo ocity Profiles for L=6 6D, 8D (z7 --- z13). The no ormalized tang gential velocitty profiles at mmeasuring poositions z1-z6 aare shown in figure 4.35 for cylinder llengths of 4D, , 6D and 8D. Xv indicates X- axis afte er the origin of o the coordinnate system iss shifted to thee approximateed mean vortex center. It I can be seen that despite thhe change in ccylinder lengtth, there is s almost no variation in the V profille at z1-z5. OOnly very smaall variatio ons are observe ed near the peeak V values. At z6, the V profile for LL3 has slightly higher pe eak value at neegative Xv /R ppositions commpared to L2 annd L3. The e reason is that the positioon z6 is locateed very close to the cylindder outlet and a flow at that t position feels the effecct of being aaccelerated with increase e in axial str rain due to smaller diammeter of cylinnder outlet ii.e d D 0.58 . i i Chapter 4 89 Swirling Flow in a Pipe
Page 1:
Experimental and Numerical Study of
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Experi imental and Numerical N Stud
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58: Experimental and Numerical Study of
Page 59 and 60: Experi imental and Numerical N Stud
Page 107: Experi imental and Numerical N Stud
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Manuscript J Mar Sci Technol manus
Page 247 and 248:
00000000 11111111 piston screen con
Page 249 and 250:
50 % and 75 % partially closed inta
Page 251 and 252:
V θ / V b V θ / V b V θ / V b 1.
Page 253 and 254:
V θ / V b V θ / V b V θ / V b 1.
Page 256:
DTU Mechanical Engineering Section
show all

Experimental and Numerical Study of Swirling ... - Solid Mechanics

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?