Non-darcy flow behaviour in partially penetrating gas wells

Erarslan, Suna


Non-Markovian diffusion over a parabolic potential barrier: Influence of the friction-memory function
YILMAZ, BÜLENT; Ayik, S.; Abe, Y.; Boilley, D. (American Physical Society (APS), 2008-01-01)
The over-passing probability across an inverted parabolic potential barrier is investigated according to the classical and quantal generalized Langevin equations. It is shown that, in the classical case, the asymptotic value of the over-passing probability is determined by a single dominant root of the "characteristic function," and it is given by a simple expression. The expression for the over-passing probability is quite general, and details of dissipation mechanism and memory effects enter into the expr...
Non-destructive patterning of 10nm magnetic island array by phase transformation with low-energy proton irradiation
Dutta, Tanmay; PATHAK, Sachin; ASBAHİ, Mohamed; Celik, Kubra; Lee, Jong Min; Yang, Ping; Saifullah, M. S. M.; Oral, Ahmet; Bhatia, C. S.; CHA, Jongin; HONG, Jongill; Yang, Hyunsoo (2017-10-09)
Nano-patterning on the order of sub-10 nm is integral to achieve high-density nano-scale devices for various data storage and data processing applications. However, the additional requirement of planarization and unwanted side-effects of physical or chemical etching have so far limited the patterning of sub-10nm devices. In this work, we have demonstrated the creation of an array of similar to 10nm ferromagnetic islands through selective phase transformation of paramagnetic multilayers by low-energy proton ...
Non linear creep of PVC under environmental conditions.
Siddigi, Ahsan Q; Department of Chemistry (1975)
Non-sinusoidal path optimization of dual airfoils flapping in a biplane configuration
KAYA, MUHAMMED ÇAĞRI; Tuncer, İsmail Hakkı (2009-10-12)
The path of dual airfoils in a biplane configuration undergoing a combined, non-sinusoidal pitching and plunging motion is optimized for maximum thrust and/or propulsive efficiency. The non-sinusoidal, periodic flapping motion is described using Non-Uniform Rational B-Splines (NURBS). A gradient based algorithm is then employed for the optimization of the NURBS parameters. Unsteady, low speed laminar flows are computed using a Navier-Stokes solver in a parallel computing environment based on domain decompos...
Non-Foster impedance matching for electrically small antennas
Altuntaş, Orhun Tevfik; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2019)
At low frequencies, non-Foster matching improves the performance of ESAs and overcomes the limitations imposed by the electrical size of antenna. Thus, the major objective of this thesis is to design and implement a non-Foster matching network in order to improve the bandwidth of an ESA beyond the levels that cannot be reached by conventional passive matching. Negative impedance converters (NICs), which are specific circuits to realize negative circuit elements, are used to design such non-Foster circuits. ...
Citation Formats
S. Erarslan, “Non-darcy flow behaviour in partially penetrating gas wells,” Middle East Technical University, 1990.