We discuss coupling conditions for the p-system in case of a transition from supersonic states to subsonic states. A single junction with adjacent pipes is considered where on each pipe the gas flow is governed by a general p-system. By extending the notion of demand and supply known from traffic flow analysis we obtain a constructive existence result of solutions compatible with the introduced conditions.
Citation: Martin Gugat, Michael Herty, Siegfried Müller. Coupling conditions for the transition from supersonic to subsonic fluid states[J]. Networks and Heterogeneous Media, 2017, 12(3): 371-380. doi: 10.3934/nhm.2017016
We discuss coupling conditions for the p-system in case of a transition from supersonic states to subsonic states. A single junction with adjacent pipes is considered where on each pipe the gas flow is governed by a general p-system. By extending the notion of demand and supply known from traffic flow analysis we obtain a constructive existence result of solutions compatible with the introduced conditions.
[1] | Coupling conditions for gas networks governed by the isothermal Euler equations. Netw. Heterog. Media (2006) 1: 295-314 (electronic). |
[2] | Gas flow in pipeline networks. Netw. Heterog. Media (2006) 1: 41-56. |
[3] | A. Bressan, Hyperbolic Systems of Conservation Laws, The One-Dimensional Cauchy Problem, Oxford Lecture Series in Mathematics and its Applications, 20, Oxford University Press, Oxford, 2000. |
[4] | Flow on networks: recent results and perspectives. European Mathematical Society-Surveys in Mathematical Sciences (2014) 1: 47-111. |
[5] | The Cauchy problem for the Euler equations for compressible fluids. Handbook of Mathematical Fluid Dynamics (2002) 1: 421-543. |
[6] | Traffic flow on a road network. SIAM J. Math. Anal. (2005) 36: 1862-1886 (electronic). |
[7] | Optimal control in networks of pipes and canals. SIAM J. Control Optim. (2009) 48: 2032-2050. |
[8] | A well posed Riemann problem for the p-system at a junction. Netw. Heterog. Media (2006) 1: 495-511. |
[9] | On the Cauchy problem for the p-system at a junction. SIAM J. Math. Anal. (2008) 39: 1456-1471. |
[10] | On 2×2 conservation laws at a junction. SIAM J. Math. Anal. (2008) 40: 605-622. |
[11] | Thèorie du mouvement non-permanent des eaux, avec application aux crues des rivière at à l'introduction des marèes dans leur lit.. C.R. Acad. Sci. Paris (1871) 73: 147-154. |
[12] | M. Garavello and B. Piccoli, Traffic Flow on Networks, vol. 1 of AIMS Series on Applied Mathematics, American Institute of Mathematical Sciences (AIMS), Springfield, MO, 2006, Conservation laws models. |
[13] | E. Godlewski and P. -A. Raviart, Numerical Approximation of Hyperbolic Systems of Conservation Laws, Applied Mathematical Sciences, 118, Springer-Verlag, New York, 1996. doi: 10.1007/978-1-4612-0713-9 |
[14] | Coupling conditions for a class of second-order models for traffic flow. SIAM J. Math. Anal. (2006) 38: 595-616. |
[15] | Assessment of coupling conditions in water way intersections. Internat. J. Numer. Methods Fluids (2013) 71: 1438-1460. |
[16] | A mathematical model of traffic flow on a network of unidirectional roads. SIAM J. Math. Anal. (1995) 26: 999-1017. |
[17] | Riemann problems with a kink. SIAM J. Math. Anal. (1999) 30: 497-515 (electronic). |
[18] | S. Joana, M. Joris and T. Evangelos, Technical and Economical Characteristics of Co2 Transmission Pipeline Infrastructure, Technical report, JRC Scientic and Technical Reports, European Commission. |
[19] | Les modeles macroscopiques du traffic. Annales des Ponts. (1993) 67: 24-45. |
[20] | Experimental assessment of scale effects affecting two-phase flow properties in hydraulic jumps. Experiments in Fluids (2008) 45: 513-521. |
[21] | Simulation of transient flow in gas networks. Int. Journal for Numerical Methods in Fluid Dynamics (1984) 4: 13-23. |
[22] | B. Sultanian, Fluid Mechanics: An Intermediate Approach, CRC Press, 2015. |
[23] | R. Ugarelli and V. D. Federico, Transition from supercritical to subcritical regime in free surface flow of yield stress fluids Geophys. Res. Lett. , 34 (2007), L21402. doi: 10.1029/2007GL031487 |